Pond Liner Calculator

Pond Liner Calculator

The size of pond liner required can be calculated as: Maximum length + (2 x maximum depth of pond) x maximum width + (2 x maximum depth) with the overlay added into the length and width pond measurements. Or, take each measurement and use a pond liner calculator to do the calculation for you.

How much overhang should a pond liner have?

Measuring for your liner

For a water garden, add the depth twice to both the length and width. Then add at least 1′ to both numbers for liner overhang. For a large pond, add the depth at the deepest point to the length plus the width. Then add 5′ to each figure to allow for burying around the edges.

Can you join 2 pond liners together?

Can you join pond liners together? The simple answer to this is yes, for the most part! Almost all pond liners are already joined together from smaller widths, either by us or at the manufacturer’s factory.

How long will a 20 mil pond liner last?

100′ Wide 20 Mil Polyethylene Pond Liners

Large ponds require a pond liner that is safe for fish and plant life, inexpensive, easy to install, and durable enough to last twenty years plus.

How much sand is needed to line a pond?

Lining the pond

Remove any lumps or sharp stones from the hole. Then spread a 3cm (1.2in) layer of soft builder’s sand over the area.

How deep should a wildlife pond be?

The depth of a wildlife pond should be 24 to 36″, that’s 2ft to 3ft at its maximum depth. However, shallower areas of around 8″ to 12″ should be included for plants to root and push out of the surface. Consider building in a beached area for mammals that fall in to escape.

Should pond liner be shiny side up?

PVC pond liner has a shiny, high gloss finish on one side and a slightly texture dull finish on the opposite side. The liner functions the same regardless of which side faces up.

How long does it take a pond liner to settle?

Step 4: Once the pond is filled leave for at least 24 hours to ensure proper settlement of the liner.

Can you put a new pond liner over the old one?

It’s best to remove old and damaged liners before adding new layers, but it is possible in some cases to just place down a new liner over the old one. You’ll need to remove everything that’s in the pond first, including any rooted plants and sand or gravel spread over the bottom.

Can you glue PVC pond liner?

Apply PVC adhesive to the top of the bottom liner and bottom of the top liner to create a strip from the edge of the liner to Xmm in. Leave the PVC Adhesive to dry for around 10 minutes until it is tacky. Flap the top liner back over the bottom liner ensuring the two strips of glue line up.

What is a good thickness for a pond liner?

0.75mm thickness is recommended for most flat sheet pond liners. We also recommend a protective layer of our G3000 puncture resistant Geotextile beneath to turn away root growth, sharp stones and other debris that might damage your liner.

How long does a butyl pond liner last?

A butyl pond liner should provide over 20 years of service as long it is correctly installed with a good pond liner underlay.

Are pond liners 100% waterproof?

Pond liners are essentially a waterproof fabric whose function it is to keep the water from seeping into the ground. Not all pond liners are made equal therefore it is advisable to check the guarantee terms and conditions before placing an order.

Should I put sand under my pond liner?

If you have built a garden around the pond, it won’t take long before the soil becomes waterlogged due to water leaking from the pond, and many of your plants will die. To protect the lining underneath, you will have to add sand or another material.

What should I put at the bottom of my pond?

Pros of having rocks and gravel on pond bottom:
Makes the bottom of the pond look natural and hides the liner material.Creates biological environment for beneficial bacteria to break down organic sludge.Rocks and gravel provide media for aquatic plants to attach their roots.

Can you line a pond with carpet?

Always use the proper underlay for the pond liner. Various sources will recommend old carpets, layers of newspaper and the like. Carpet is difficult to mould to the contours of shelves and the bottom of the pond and the liner needs to follow the lines you want with as few creases as possible.

James H. Sterling
Author

James H. Sterling

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.