What goes under a pond liner?

A pond liner is a relatively expensive investment. Taking care of your liner can mean it will last up to thirty-five years or more. The cost of any type of flexible pond liner depends on the size of the build and the liner material you choose. Rubber liners such as Butyl and Epalyn (EPDM) are slightly more expensive than PVC, however they offer many high quality features such as resistance to ultra-violet rays, highly flexible moulding readily into the contours of a pond design and resistant to tearing. Despite the high specifications, if care is not taken during installation, you could risk damaging your liner. What goes under your pond liner of choice can make a difference to your water features success and liner longevity.

Importance of protective underlay to a pond liner

A geotextile liner is a permeable fabric made from synthetic materials. It is commonly used in pond construction to serve as a protective layer or stabilizing material, offering several key benefits.

If the ground you have built your pond contains sharp rocks, roots, or debris, a layer of geotextile protective underlay material beneath the liner can prevent punctures. You only need to consider the weight of just 10 litres of water to appreciate the pressure baring down on a liner once the water feature has been filled.

Provides a stable foundation by preventing soil movement under the liner. Reduces erosion and enhances the structural integrity of the pond base.

Protective liner options

For most ponds, non-woven geotextile underlay liner is the best choice. Geotextile is specifically designed for this purpose, offering superior durability, protection, and ease of installation. Additionally, they are lightweight, easy to cut, and compatible with all liner materials.

Adds structural support for liners in larger projects where the risk of damage is higher.

If you’re on a budget or have an irregular surface, combining a geotextile underlay with a sand layer can provide an effective, cost-efficient solution.

Benefits of adding a protective underlay liner

By adding a protective underlay between the soil and your pond liner you will help extend it’s life. Geotextile also helps to reduce maintenance costs by preventing leaks or liner failures. In summary, it will increase the overall durability and resilience of the pond structure.

In most pond construction projects, especially with flexible rubber liners, a geotextile underlay is a cost-effective and practical solution to protect the liner and ensure long-term functionality.

This entry was posted on November 22, 2024, in Pond Liners.

Pond liners UK for variety of garden pond builds

Choosing the right pond liner for a garden pond in the UK involves a number of important considerations, including material type, durability, size, and environmental factors.

Here’s a breakdown of pond liner options and some recommendations for a successful garden pond build:

Types of Pond Liners UK

  • PVC Liners: Cost-effective and flexible, PVC liners are popular for smaller ponds. They are easy to work with but are not UCV resistant therefore can degrade when exposed to sunlight over time. PVC pond liner material is a good for small size ponds, but should be installed with a protective underlay to prevent punctures.
  • EPDM (Ethylene Propylene Diene Monomer), also known as Epalyn pond liners: This type of rubber liner materials are flexible, highly durable, resistant to UV rays, and can withstand harsh temperatures. Epalyn is a popular choice for medium to large size ponds or irregular shapes as it stretches well without cracking.
  • Butyl Rubber Liners: Known for durability, butyl rubber pond liners UK are flexible, long-lasting, and more resistant to damage. They’re slightly more expensive but are suitable for larger ponds. In the UK, Butyl has been a favourite due to its durability and weather resistance.
  • RPE (Reinforced Polyethylene) Liners: Lightweight and strong, RPE liners are durable and resistant to tears. However, they’re not as flexible as rubber liners, making them less ideal for complex shapes but good for larger ponds with simpler designs.
  • Preformed Liners: Preformed fiberglass or plastic liners are rigid and suitable for small to medium-sized ponds with simple shapes. They’re durable and easy to install but limited in customization.

Pond liner size and thickness

  • For most garden ponds, a liner thickness of 0.75mm is sufficient. Thicker liners of 1mm are recommended for larger, more elaborate pond designs, box-welded pond liners or where durability is key.
  • Choosing the correct pond liner size will save you time and money. You can calculate the required liner size by measuring the maximum width, length, and depth of the pond:
    • Maximum Length (L): Measure the longest distance of the pond.
    • Maximum Width (W): Measure the widest distance of the pond.
    • Maximum Depth (D): Measure from the pond bottom to the highest point of the edge.

Calculate liner length and width:

Liner Length=Pond Length (L)+(2×Depth (D))+Edge Overlap

Liner Width=Pond Width (W)+(2×Depth (D))+Edge Overlap

Edge overlap = Add 30-60 cm (around 12-24 inches) on each side to secure the liner around the pond edges.

If your pond has an irregular shape, measure the longest and widest points. It is best to err on the side of caution and round up to the nearest available liner size. Any extra pond liner can be easily trimmed or tucked under your chosen edging material such as boulders or pebbles used to secure your liner in place.

Protective Underlays

Using an underlay is essential to protect the liner from sharp rocks, roots, and ground movement. Materials like geotextile underlay or sand can be used as a cushion beneath the liner.

Pond liners UK for garden pond builds of all shapes and sizes

Climate Considerations for the UK

The UK’s climate, with cold winters and wet conditions, makes rubber liners (like Epalyn or Butyl) a good choice as they handle temperature fluctuations well. EPDM Epalyn is particularly good for withstanding frost.

Selecting the right pond liner can make a big difference in longevity and ease of maintenance for your garden pond. Epalyn and Butyl rubber liners are often the best options in the UK due to their flexibility and resilience to the climate.

This entry was posted on November 8, 2024, in Pond Liners.

5 Gardening tasks not to ignore this winter

Autumn in the UK is a season of transformation, as the landscape turns from lush greens to warm shades of gold, amber, and red. The air is crisp and fresh, carrying the earthy scent of fallen leaves and the faint smokiness of wood fires. Mornings often begin with mist hanging low over fields and rivers, adding a mystical quality to the countryside, while shorter days and cooler temperatures signal nature’s retreat in preparation for winter.

Wildlife is more active in this season, with squirrels scurrying to gather food, hedgehogs preparing for hibernation, and birds migrating south. Gardens take on a new character, with bursts of autumnal flowers like dahlias and asters and the last of the season’s harvest, including apples, pumpkins, and blackberries.

Important gardening tasks

Autumn is a crucial time for garden preparation as the weather starts to cool and leaves begin to fall.

Here are key tasks to help keep your garden healthy and ready for winter:

1. Lawn Care

Rake up fallen leaves to prevent them from smothering the grass. Fallen leaves can form a thick, damp mat that blocks sunlight and air from reaching the grass. Without sunlight, grass can weaken and die, leaving patches in the lawn. Leaves also trap moisture, which encourages fungal growth, moss, and other lawn diseases that can damage grass.

While raking is important for lawns and paths, some gardeners rake-up leaves into specific areas, like under shrubs, where they can decompose slowly and provide insulation. They also benefit wildlife by providing shelter for hedgehogs, insects, and other wildlife.

Raked leaves can also be composted, providing nutrient-rich mulch or soil for the garden. This is an excellent way to recycle organic matter and enrich your garden naturally.

If you have a garden pond, remember to rake-off fallen leaves from the surface before they sink and start decomposing.

Aerate your lawn to improve drainage and reduce compaction.

Apply autumn lawn feed for strengthening roots and improving winter resilience.

Mow less frequently, but keep the grass relatively short before winter sets in.

2. Planting and pruning

Plant spring bulbs (like daffodils, tulips, and crocuses) in beds or pots for spring displays.

Divide and replant perennials to refresh your flower beds and encourage new growth.

Prune hedges and shrubs like roses, hydrangeas, and buddleia, removing dead or damaged wood.

Plant trees and shrubs; the cool, moist soil gives them time to establish before spring growth.

3. Tidy up borders and flower beds

  • Cut back spent annuals and perennials but leave some, like seed heads, for wildlife and winter interest.
  • Mulch beds with compost or bark to insulate roots and enrich the soil over winter.
  • Remove weeds to reduce competition for nutrients and prevent them from seeding.
  • Move tender plants like potted citrus and pelargoniums indoors or to a greenhouse.
  • Add a layer of straw or fleece around delicate plants for extra insulation against frost.

4. Harvest and clear vegetables

  • Harvest remaining vegetables, such as pumpkins, squash, and root vegetables.
  • Clear spent crops and add them to the compost.
  • Sow green manure in empty beds to improve soil health and reduce erosion.

5. Prepare Tools and Equipment

  • Clean and oil garden tools to prevent rust and keep them ready for spring.
  • Service lawnmowers and other equipment to ensure they are ready to use after winter.

These tasks will help keep your garden healthy and vibrant, giving it a great start for the next growing season. You can also add vibrancy to your garden by installing bird feeders and bird baths to attract birds and keep them fed over winter.

This entry was posted on October 25, 2024, in Pond Liners.

What is the true value of your pond?

Garden ponds offer tremendous value to homeowner and environment for a variety of reasons, both tangible and intangible. Here are some key aspects to consider:

Aesthetic and Landscaping Value

Garden ponds can significantly enhance the beauty and appeal of a property. They add a natural, serene element to outdoor spaces, often serving as focal points in garden design. The visual and auditory elements of water, such as reflections and gentle sounds, can create a calming atmosphere.

Ecological and Environmental Benefits

Garden ponds contribute positively to local ecosystems. They can:

  • Support Wildlife: Ponds provide habitat for various species, including frogs, birds, insects, and aquatic plants. This can help promote biodiversity.
  • Microclimate Regulation: Water bodies can moderate temperatures in their immediate vicinity, creating a cooler microclimate during hot periods.

Personal Enjoyment and Wellbeing

For many, garden ponds are a source of relaxation and enjoyment. They offer a space for quiet reflection, watching wildlife, and even recreational activities like koi keeping. The presence of water features has been linked to reduced stress and increased mental well-being.

Property Value

A well-maintained garden pond can increase the marketability and value of a property. Prospective buyers often see them as a desirable feature, especially if the pond is aesthetically pleasing and adds to the overall landscaping.

Educational Opportunities

Garden ponds offer a hands-on learning environment for understanding ecosystems, water cycles, and wildlife. They can be particularly beneficial for children, providing a practical way to engage with nature and science.

Water Management

While primarily for aesthetic and ecological purposes, garden ponds can also play a role in water management. They can help collect rainwater, potentially reduce runoff, and support water conservation efforts, especially in xeriscaping practices.

Considerations and Maintenance

The value of a garden pond also depends on proper planning and maintenance. Poorly designed or neglected ponds can become breeding grounds for pests, such as mosquitoes, or may suffer from water quality issues like algae blooms. Regular maintenance, including cleaning, managing plant and animal life, and ensuring water quality, is crucial to preserving the pond’s benefits.

In summary, garden ponds are of great value for their aesthetic appeal, environmental contributions, and personal enjoyment. However, their actual value can vary based on design, maintenance, and individual preferences.

Quick guide to maintaining your garden pond

Maintaining a garden pond involves several key steps to ensure it remains healthy and attractive. Here are some essential tips:

  1. Regular Cleaning: Remove debris, fallen leaves, and any dead plant material to prevent water contamination.
  2. Manage Nearby Plants: Trim back overhanging branches and plants to reduce the amount of organic matter falling into the pond.
  3. Grow Water Plants: Introduce oxygenating plants to help maintain water quality and control algae growth.
  4. Control Ice in Winter: Use a pond heater or floating de-icer to prevent the pond from freezing completely. This will ensure fish and plants survive.
  5. Algae Control: Shade the pond with floating plants and avoid overfeeding fish to reduce nutrient levels that promote algae growth.
  6. Maintain Equipment: Regularly check and clean the pump, filter, and any fountains to ensure they are functioning properly.
  7. Water Level: Keep the water level consistent. Topping up with rainwater if possible to avoid adding excess nutrients from tap water.
  8. Monitor Water Quality: Test the water regularly for pH, ammonia, and nitrate levels. This will help to ensure a healthy environment for fish and plants.

Maintaining water quality in your garden pond

This is important for the health of your fish and plants. Here are some key tips to help you keep your pond water clean and balanced:

  1. Regular Cleaning: Remove debris such as leaves, twigs, and dead plants from the pond regularly to prevent decay and water contamination.
  2. Proper Filtration: Install a good quality filter system to remove impurities and maintain clear water. Regularly check and clean the filter to ensure it functions effectively.
  3. Aeration: Use a pump or fountain to keep the water well-aerated. This helps maintain oxygen levels, which is essential for fish and beneficial bacteria.
  4. Monitor Water Parameters: Regularly test the water for pH, ammonia, nitrite, and nitrate levels. Aim for a neutral pH around 7, and keep ammonia and nitrite levels as close to zero as possible.
  5. Control Algae Growth: Introduce barley straw or use pond-safe algaecides to control algae growth. Adding oxygenating plants like hornwort and elodea can also help keep algae in check.
  6. Avoid Overfeeding Fish: Overfeeding can lead to excess waste, which can degrade water quality. Feed your fish only the amount they can consume in a few minutes.
  7. Water Changes: Perform partial water changes regularly to dilute accumulated toxins. Every few weeks, replace approximately 10-20% of the pond water, and use a water conditioner to neutralize chlorine if tap water is used.
  8. Maintain Plant Balance: Ensure a good balance of submerged, floating, and marginal plants. Plants aid in absorbing surplus nutrients and offer shade, which helps in reducing the growth of algae.

Keep mosquitoes away!

Preventing mosquitoes in your garden pond is crucial to maintaining a pleasant and healthy environment. Mosquitoes lay eggs in still water, so installing a fountain, waterfall, or aerator. This can help keep the water circulating and deter mosquitoes. Attracting natural predators such as dragonflies, damselflies, frogs and birds will also help keep the mosquito numbers down. Fish such as guppies and goldish eat mosquito larvae so will also help prevent mosquitoes from ruining your summer evenings.

    By following these steps, you can enjoy a beautiful and thriving garden pond throughout the year.

    7 Important steps gardeners can take for wildlife

    Gardening is well documented to have positive effects to both our physical and mental health. Ideally the work gardeners do in their gardens should also have a positive outcome for wildlife and the environment. However, too often the need for the ‘perfect’ outdoor space results in out-striping these positive outcomes. The growing trend to lay artificial turf and paving means the hard slog at the hands of a lawn mower reduces health benefits and natural foods for birds and insects. So, lets look at how we can ‘buck’ modern trends and go back to focusing on our fragile environment.

    You many well ask what difference your garden would make if you committed fully to supporting wildlife and the environment. Sustainability reduces carbo emissions.

    According to ZSL.org, gardeners have created 2 – 3 million ponds across the country. These bodies of water are enjoyed by frogs, newts, water beetles, dragon flies, pond skaters and many other wildlife species. Ponds are an important source of drinking water for mammals and birds too.

    Don’t bin – mulch and compost instead

    Gardeners need to aim to pledge only to purchase peat-free compost or potting soil and recycle the bag it was sold in. Many garden nurseries take empty bags of compost to have them recycled as well as plastic plant pots.

    Gardeners are encouraged to compost household green waste to dig the nutrients back into the earth

    Create a ‘wild’ corner in your garden

    Dedicate a ‘no-mow’ area in your garden to grow nectar and pollen rich indigenous plants such as cornflower, poppies and sunflowers. Sow seeds and let nature take over. An overgrown protected area will provide a perfect place for hedgehogs to hibernate.

    Include a log pile for insects to make their homes in and offer a haven in the cooler months. Leaves left lying in flower beds will provide shelter to insects and small creatures that hibernated during the winter months.

    Grow for pollinators

    Plant nectar-rich plants that flower at different times of the year to support bees, butterflies and moths. These insects, which are in decline play a critical part in our ecosystem. Nectar-rich plants include foxgloves, wallflowers, Verbena bonariensis & heleniums (Sneezeweed) as well as herbs such as Rosemary.

    Plant nectar rich plants in your garden

    Gardeners are encouraged to follow sustainable practices

    Avoid the use of chemical pesticides and fertilisers as these affect wildlife and the delicate balance of our ecosystem.

    Plant a hedge

    Hedges offer shelter, food and nesting areas for birds, insects or small animals.

    Build a pond

    Wildlife will always be attracted to water. If the intention of your garden pond is for wildlife versus to home Koi or goldfish, be sure to include a beached area. The slopping edge will allow ease of entry and exit to your pond.

    Feed birds

    Feed birds only types of foods bought from reputable suppliers. Cheap fat-balls often have harmful fillers added to the suet which is harmful to birds.

    What we eat and reducing the amount of food waste will also have an effect on our environment. Plan meals and the ingredients needed to reduce waste. Try buying foods from sustainable sources and from fair trade suppliers. We should also aim to cook as many of your meals as possible from scratch. Doing this is likely to also reduce the amount of packing materials destined to landfill. We need to ditch the notion that filling our blue recycle bins vs green bins is helping the environment – waste is waste and energy is needed to send to landfill or recycle into new products.

    According to a BBC report published in September 2023, plants and animals that have been monitored in the U.K. since 1970 have declined by 19%. This trend paints a bleak picture for our countries wildlife. Doing everything we can for wildlife as suggested in this article and more can help slow the rate of decline. The Chief Executive of the RSPB, Becoy Speight suggested that restoring nature would also help tackle the climate crisis. A further decline in nature will have damaging consequences to our own lives.

    Gardeners can really help boost biodiversity and help tackle climate change so lets get out there and do our bit!

    Which is a low cost high quality pond liner?

    Spring or autumn are considered the best months to build a pond. These two seasons allow for moderate temperatures and rainfall, which can help withy the initial filling of the pond and establishment of aquatic plants. It is best to avoid building a pond during extreme weather conditions such as freezing or heat. These conditions can make construction more challenging and may impact the success of a ponds ecosystem.

    Choosing your pond liner

    When choosing a pond liner consider facts such as size, shape budget and the specific needs of your pond.

    In the UK, one of the most popular pond liners is EPDM rubber liners. EPDM brands such as Epalyn as sold by Liners Online are commonly used due to their durability, flexibility and resistance to UV radiation. Epalyn rubber liners are known for their longevity and ability to conform to various shapes and sizes of ponds. They are also considered environmentally friendly and safe for aquatic life.

    Taking care of your Epalyn pond liner

    Protecting your pond liner is essential for ensuring its longevity and preventing damage. Here are some tips to help you protect your pond liner:

    • Install a protective underlayer: Before laying down the pond liner, consider using a protective underlay material such as geotextile to provide an additional layer of cushioning and protection against sharp stones, rocks or other objects.
    • Remove sharp objects: Clear the area where you plan to install the pond of any sharp rocks, roots, or debris that could puncture or damage the liner. This will help prevent tears or leaks over time.
    • Avoid walking on the liner: Once the pond is constructed and filled with water, avoid walking directly on the pond liner to minimize the risk of punctures or tears. Use stepping stones or a board to distribute weight if access to the pond is necessary.
    • Monitor wildlife: Keep an eye on any wildlife that may visit your pond, such as herons, as they can potentially damage the liner while hunting for fish or other prey. Consider using deterrents or protective measures to keep wildlife away from the pond.
    • Check for leaks regularly: Periodically inspect the pond liner for any signs of damage or leaks, such as water loss or tears. Promptly repair any issues you find to prevent further damage.
    • Water level: Protect your pond liner by ensuring the water level remains consistent and in areas where winter temperatures drop below freezing, use a pond heater to prevent the surface from freezing solid, which could damage the liner.

    By following these tips, you can help protect your pond liner and maintain a healthy and thriving pond ecosystem for years to come.

    Steps to an aesthetically appealing garden pond

    There are a number of factors that determine whether or not a garden pond will add value to your property. One consideration is how aesthetically appealing a pond is. But, what does an aesthetically appealing garden pond look like?

    A pond that needs little maintenance is a strong factor to an appealing pond that is likely to add value. So too is one that blends in with the surrounding landscape and has good quality finishing touches.

    Creating a low-maintenance garden pond involves thoughtful design and proper planning. Here are some tips to achieve this:

    Choose the Right Location:

    • Build your pond where it receives the right amount of sunlight and shade.
    • Avoid areas with excessive leaf fall to reduce debris in the pond.
    • Locate in best view from every angle of garden and house

    Select Low-Maintenance Plants:

    • Opt for native and hardy aquatic plants that require minimal care.
    • Consider adding plants like water lilies and submerged oxygenators.

    Install a good quality pond liner

    • Install a rubber Butyl or Epalyn pond liner to prevent water leakage and reduce maintenance tasks.

    Install an Efficient Filtration System:

    • Invest in a good filtration system to keep the water clean and reduce the need for manual cleaning.
    • Consider biological filters and skimmers.

    Balance the Ecosystem:

    • Introduce beneficial bacteria to maintain a balanced ecosystem and control algae growth.
    • Include appropriate numbers of fish to help control insects and larvae.

    Avoid Overcrowding:

    • Don’t overcrowd the pond with too many plants or fish, as this can lead to imbalances and increased maintenance.

    Use Gravel or Rocks:

    • Cover the pond bottom with gravel or rocks to discourage the growth of unwanted algae and make cleaning easier.
    Quaint aesthetically appealing garden pond design using railway sleepers and pebbles for the edging to secure the pond liner in place

    Regular Debris Removal:

    • Install a net or pond skimmer to catch leaves and debris before they sink to the bottom.
    • Regularly remove debris from the water surface.

    Mulch Garden Beds:

    • Mulch the garden beds surrounding the pond to reduce weed growth and make maintenance tasks easier.

    Consider a Water Feature:

    • Adding a fountain or waterfall can help aerate the water and reduce stagnation.

    By implementing these strategies, you can create a beautiful, aesthetically appealing garden pond that requires less maintenance, allowing you to enjoy the benefits without constant upkeep.

    This entry was posted on February 2, 2024, in Garden ponds.

    Garden and Pond Autumn Maintenance Tips

    The leaves are slowly starting to take on orange hues and fall to the ground creating carpets of yellow, orange and browns. Autumn has its own special beauty as it draws the growing season to an end- a time to relax after a busy growing season! Before winter arrives, however there are a few essential pond maintenance tasks that need doing to both your garden and pond as discussed here. Investing time to maintain your garden pond will benefit its inhabitants.

    Autumn garden tasks

    1. Tidy the edges to borders of flower beds – trim the grass, dead-head flowering plants (especially roses), remove weeds and cut back dead branches or stems. For those who love a tidy looking garden, the neat edges to flowerbeds and paving will distract from the grass being a little longer than it would be in spring and summer
    2. Plant bulbs for a vibrant display of colour in spring. Plant daffodils between September and October, tulips in November
    3. Give your lawn it’s last mow and spread an autumn fertiliser to add nutrients while also stopping the growth of weeds and moss. This is also a good time to lay new lawn while ground warm but not too wet
    4. Dig compost or well rotted manure into your flowerbeds to keep plant roots warm over winter
    5. Plant or transplant evergreens, shrubs, roses or hedging while the soil is still warm and is moist enough for easy digging. September to November is considered ideal for tree planting because roots can become established before the ground freezes over
    6. Move frost sensitive potted plants and tender perennials indoors or store in a greenhouse, garage or conservatory – it only takes one night of frost to damage more sensitive types of garden plants. If you don’t have a sheltered place to keep vulnerable plants over the winter months, make sure you cover them with garden fleece or bubble wrap to protect from frost and freezing temperatures. Water less to bring on a state of semi dormancy. Digging in an ample amount of compost mulch or leaf mould should protect other more hardy plants which stay outdoors over winter
    7. Clean garden equipment by removing all traces of rust. Store in a dry place to avoid corrosion
    8. Prune back deciduous hedges
    9. Rake-up leaves as often as you can. Leaves left on the lawn will block sunlight reaching the blades of grass, which may result in brown patches and moss growth. Make leaf mould from the fallen leaves. This will make a soil improver or nutrient rich mulch in which to grow seedlings. Leaf mould can be make by creating a separate leaf heap. The fibrous leaf mould retains moisture and enhances soil drainage. A leaf heap can be constructed using chicken wire and log posts allowing air to circulate. A leaf heap should take a year to rot down
    10. Clean and cover or store garden furniture. Leaving it uncovered could encourage a green mould growing on it which then means having to do a tougher cleaning job before using the furniture again when the weather warms
    Autumn leaves covering the lawn

    Pond maintenance tasks

    • Neaten overhanging plants by pruning back to reduce foliage falling into your pond
    • Use a skimmer to remove debris before sinking to bottom of pond
    • Reduce amount of food you feed you fish as they become less active as temperature drops
    • Remove any sludge build-up from the bottom of your pond – without disturbing hibernating pond inhabitants

    Autumn is also the perfect time of the year to build a garden pond in your garden. Wildlife will love you for this addition to your outdoor space.

    And, with every job having the right tools to hand helps get things done more effectively and efficiently from keeping flowerbeds weed free to skimming off the leaves from your pond and adding them to your composter. Autumn garden and pond maintenance are essential to the health of both plants and inhabitants of a garden pond.

    This entry was posted on September 15, 2023, in Garden ponds.

    How to help your pond adjust to changing climate

    June 2023 has gone down in history as the warmest on record. For those who were lucky enough to spend those sunny, dry days on the beach will cherish the fun memories the month provided. But for garden enthusiasts and wildlife, the heat and lack of rain had devastating effects. The changes in climate are also having a distinct impact on our ponds, lakes and reservoirs (greatly affecting farmers too!). We need to be mindful of these long dry periods and steps we can take to help our ponds continue to thrive. It is also intense periods of rain that can also have profound effects.

    We always advocate lining man-made water features with rubber pond liners because they are resistant to UV rays and don’t go brittle nor crack during adverse weather conditions. The superior quality of Epalyn and Butyl pond liners are guaranteed to keep your pond water-tight provided they are installed above a geotextile liner to prevent sharp stones tearing the liner.

    Let’s look at other steps we need to consider to protect ponds and wildlife during periods of extreme weather.

    Garden ponds help combat climate change

    According to Mike Jeffries, Associate Professor in Ecology at Northumbria University, garden ponds are more than just an attractive feature, they also play an important role in helping combat climate change. We already know that ponds increase garden biodiversity and help prevent flooding by slowing down the flow of water in heavy rains. But did you know that ponds also store carbon? A recent study suggests that in the sediment accumulated at the bottom of ponds, there’s potential to hold more carbon per square metre per year, than equivalent areas of grassland and woodland. Ponds are the most common and widespread habitat for all plants and animals.

    We have lost over 50% of our ponds in the last century, in favour of neat lawns and paving. Ponds matter and are one of the most important things you can do for wildlife. They are easy to create and their value is now firmly understood. No longer overlooked, the importance of ponds in the carbon cycle and in fighting climate change is becoming apparent.

    Steps to help pond during hot weather conditions

    Hot, dry conditions can bring many challenges to ponds particularly to those home to Koi or goldfish. However, there are things we can do to minimise any negative impact.

    • Monitor the temperature of the water and take action if it goes above 27 degrees Celsius (15 to 25 degrees C is optimal).
    • Warmer the water becomes, the lower the oxygen levels. Watch out for fish swimming to the surface and gasping for breath leading to stress.
    • Shade blocks UV rays from warming the water. Planting broad leaved plants such as water lilies and, or installing a temporary shade cover over your pond will help maintain a healthy temperature.
    • Aquatic plants release oxygen during photosynthesis. This process offers an eco-friendly way to aerate the water. Plants not only take-up carbon-dioxide and release oxygen but also absorb excess nutrients that would otherwise increase risk of algae growth thereby improving water quality.
    • Add a water feature to keep water moving and to create bubbles allowing a natural diffusion of oxygen into the water.
    • Don’t over feed fish to reduce waste. Uneaten food will start to decompose over time and affect natural nutrient balance in the water. The result could lead to algae blooms.
    • Remove debris before it decomposes.
    • Make sure pond is deep enough to retain a bottom layer of cold water.

    Your pond during periods of heavy rainfall

    Reduce rainwater run-off into your pond by minimising man-made impervious surfaces. Plants absorb water so grow sufficient to cover your flower-beds including native plants which have extensive root systems to absorb rainwater before it becomes ‘run-off. Reduce the slope of your garden and add a gravel area around the edge of your pond to drain excess water. If your pond is at risk of flooding, scoop out excess water.

    According to the RHS, managing our garden and ponds will help offer a buffer for wildlife in a changing climate. Ponds provide a life line to wildlife such as dragonflies, damselflies and amphibians.

    Wildlife garden pond provides a haven for insects, birds, frogs and dragonflies particularly during dry periods and climate changes

    Why Butyl pond liner is still a popular choice?

    Butyl pond liner is a synthetic rubber sheet that has been used to line ponds of all shapes and sizes. It has been the preferred liner of choice for the past four to five decades displaying great longevity. Despite other less expensive pond liners coming to market, Butyl is still proving to be a popular choice. We explore reasons that have made this one of the most successful choices for water containment.

    When choosing a pond liner, a key feature is how it stands up to a wide range of weather conditions and to ground movement. Weather conditions in todays times with global warming affecting climate change is very important. Butyl pond liner stays stable in both very warm and cold weather.

    Butyl liners are available in different thicknesses. The 0.75mm thickness is ideal for flat sheet liner installations, whereas the 1.0mm is the preferred choice for box-welded liners. Sheets of liner can also be welded together on site for more complex pond shapes and for large pond builds.

    Key features of Butyl

    • Highly flexible accommodating all pond designs and ground movement
    • Durable and offers an excellent balance between durability and flexibility
    • UV resistant so it remains stable in wide range of temperatures without showing signs of contraction or expansion
    • Readily fabricated into 3-D box-welded pond liners
    • Superior physical characteristics
    • Conforms readily to the contours of the pond shape

    With all these outstanding attributes, it is highly recommended to use of a geotextile underlay to line the bottom of a pond before installing the pond liner. The underlay will add extra long-term protection against roots and sharp stones puncturing the liner. Over time ground movement pushes stones towards the ground surface hence the reason to protect.

    Butyl pond liner on the role

    Although Butyl is a slightly more expensive choice, it is still chosen by landscapers due to its high specifications thereby reducing the risk of damage. We have had reports from customers who installed their pond liner about 40 years ago and it is still holding water successfully!

    Why choose an EPDM pond liner for your pond?

    EPDM pond liner (ethylene propylene diene monomer) is the ideal solution for water retention and widely used to line lakes, garden ponds and man-made streams. EPDM is a synthetic rubber with properties very similar to butyl pond liner and has become a leading product for lining garden ponds. EPDM pond liner has many superior technical features such as resistance against root penetration, unaffected by UV radiation, durability, withstands adverse temperature range of -40 to +150 degrees Celsius and has a proven long service history. This pond liner is seen as the cheaper yet slightly more superior alternative to Butyl pond liner.

    EPDM is sold under many different brand names. Liners Online sell EPDM under the name, Epalyn and is available in three different thicknesses; 0.75mm, 0.85mm and 1.0mm.

    When you type “EPDM” into the search engines you may also see a choice of roofing specialist websites. This is because the synthetic rubber membrane is a very popular choice in the roofing industry but it is not to be confused with EPDM pond liners, also known as Epalyn pond liner as sold by Liners Online. The rubber membrane used to line ponds, lakes, streams, water storage tanks and reservoirs is fish-friendly and is also used to line potable water tanks. For this reason EPDM pond liner should only by ordered from companies in the aquatic trade.

    EPDM pond liner is available in three thicknesses of 0.75mm, 0.85mm and 1.00mm. This makes EPDM pond liner suitable for a range of application types from the humble garden pond through to the most demanding large pond or lake builds.

    For natural ponds, EPDM pond liner can be supplied as a single sheet to your required size, and then trimmed to the exacting shape once installed. We highly recommend installing above a tough performing geotextile pond underlay. It’s function is to protect your pond liner from being punctured by sharp stones, rocks, roots and other soil debris that might be pushed up due to natural ground movement.

    Your pond design plans may include covering above your liner with soil, gravel, rocks or pebbles for a more natural look. If so, Geotextile protective underlay should also be used both above and below the pond liner to prevent costly and time consuming repairs.

    For formal shaped ponds (with vertical sides and a flat base), including Koi and ornamental ponds, EPDM can be fabricated and supplied as a box-welded pond liner. The advantage of this design is that they can be installed into a pond dug-out without any unsightly folds or creases. This 3-D effect pond liner is fabricated in our factory and supplied as a single item.

    7 reasons why you should buy an EPDM pond liner

    1. Most flexible pond liner therefore moulds readily into the shelves, contours and features of a pond
    2. Suitable for ponds of all shapes and sizes and can be supplied as a single sheet or box-welded liner for formal vertically sided ponds
    3. Greater puncture resistance versus PVC or Butyl
    4. Very durable because of it’s resistance to UV rays and ability to withstand an extreme temperature variation from -40 to 90 degrees Celsius
    5. Resistant to microbial and algae attacks therefore requires little maintenance once installed
    6. Non-toxic so it doesn’t leach chemicals into the water – won’t harm fish, wildlife or aquatic plants
    7. Superior weathering resistance so won’t crack or go brittle with age. EPDM Epalyn pond liner has over 40 years of experience and most companies offer a 25 years guarantee 

    Pond liner performance

    An EPDM pond liner is guaranteed over a life-time for orders under a 100 m squared or for 25 years for orders over 100m square. If installed above a Geotextile protective underlay it is likely to provide a lifetime of water retention. However, should your pond be visited by a sharp clawed creature, you can be assured that rubber pond liners are readily repairable using Mastic tape or a pond liner repair kit.

    Liners Online are passionate about the pond liners we supply and have years of experience in the business including on site installation and fabrication. Please visit our website for details on our pond liners and our Epalyn pond liner kits.

    This entry was posted on July 3, 2023, in Pond Liners.