Pond Liners

Pond Liners Tank and Dam liners and are made from a long lasting EPDM which is an agricultural grade polyethylene or Butyle rubber. And although dam liners are used in large scale commercial and agricultural projects the principle applies to pond liners which are used widely in landscaping projects in homes and businesses.

Liners for Ponds serve a similar purpose to those for dams and tank, they are designed to save water by preventing leakage, a properly installed pond or dam liner is a great investment. 

Substituting cheap pond liners for proper liners is not cost efficient in the long term, black plastic is not a good substitute, and if you need to empty a pond or dam to replalce a leaking liner, the cheap pond liner will not look like a good option.

What to look for in a pond liner

We have seen many ponds have been installed using a cheap substitute liner that eventually leaks, breaks down because of UV or is easily punctured . In the long term it is much more efficient both in terms of cost and time to use the right liner for the application.

So what are we looking for in a pond liner.

• Flexibility, the ability of the liner to naturally mould itself to the contours of the pond and not lose its structural integrity due to folds, joins or pleats.
• The ability to be repaired. Any liner can be damaged, however not all can be repaired or patched. UV resistance, sunlight breaks down most products, however a quality pond liner will last many years in the sun if it has built in UV resistance.
• Thickness, heavy duty liners are more durable than thin plastic, look for something that is at least 1.02mm thick.
• To help prevent punctures and leaks, a Geotextile beneath the liner is also recommended.
• The ability to install drains and fountains without leaks, a quality pond liner will be flexible enough to allow leakproof installation of drains etc.
• Non toxic, a pond for fish, a holding pond for drinking water, or a larger swimming pond needs a non toxic liner.

Pond Liners and Dam Liners are available for sale from the following suppliers

BEUTYLINER AUSTRALIA -  Freecall 1300 666 004
2/40 Orbis Drive | Ravenhall, Victoria 3023
Manufacturers and distributers of both domestic and commercial pond & dam liners. A great site for anyone interested in pond construction.
www.beutyliner.com.au

CREATIVE PUMPS - Phone 1800 607 388 
Australia's largest range of Pond Pumps, Filters, liner, Lights, Fountain pumps, Waterfall spillways, Pond vacuum cleaners, Pond Water Treatment. of Oase, Eden, Laguna, FloJet, Pondmate, Blagdon, Onga, Project, Fishmate and more.
www.creativepumps.com.au

So what technical characteristics are we looking for in a pond liner?

• Stretch or elasticity,
• Flexible,
• UV resistant,
• Non toxic
• Weldable (glues are not the best joining method for pond liners)

EDPM is a term used widely with pond liners but what does it mean ? Ethylene, Propylene, Diene, Monomer, it is a synthetic rubber that has a high degree of elasticity that allows it mould itself to a wide range of shapes. Some are toxic, some are not, some can be welded some not..

Butyl Rubber is another term, again it is a synthetic rubber, Isobutylene and isoprene. Probably the most versatile of all pond liners, it can be welded, can be folded to use in formal box ponds and is non toxic.

Calculation of materials needed

• The length is determined by the overall length plus twice the maximum depth.
• The width is determined by the overall width plus twice the maximum depth.
• It is advisable to add at least 200mm to both the length and the width for edge anchoring and variables.
• A simple liner measurement can be roughly calculated by determining the width length and depth of the pond
• So length is calculated by the overall length plus double the depth
• Width is calculated by the width plus double the depth
• Depth must be at the deepest position
• It is essential to add some overhang for edge anchoring and variations.

However any good pond liner supplier will calculate this for you. You need to do the measurements accurately first.

Tank Liners

With garden tanks and those used for rural water storage, tank liners are an economical and practical way to carry out long lasting repairs. Most are made of a thick and durable polyethylene liner which are very flexible, as well as being cost effective in many applications.

In situations where older tanks have leaks or damage and yet are still reasonably sound, liners are a way of prolonging the life of a tank. Quick and easy to install they can also overcome logistical problems.

They are also used in food production, where food grade liners are used to ensure quality during storage and production processes.

Tank Liners are used extensively in the horticultural and agricultural industries to prevent seepage. Different types are suitable for farm tanks, domestic tanks and food processing tanks.  Water tank liners are used both in new tanks and to refurbish older water tanks.

Also used in concrete tanks, underground and on fire fighting water tanks installation can be arranged by many suppliers or DIY is also an option.