Ponds - Rigid Plastic Or EPDM Liner - Landscaping & Lawn Care - DIY Chatroom Home Improvement Forum

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Old 01-11-2009, 09:44 PM   #1
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Ponds - Rigid Plastic or EPDM Liner

Which is better - Rigid Plastic or EPDM Liner when building a pond? I am in AZ and UV rays are a problem here. Which would hold up better in the sun and heat?

Some say the rigid plastic is better but then others say the rigid plastic can crack. Some say EPDM liner but others say it falls apart in the sun and leaks. Who to believe?

This place looks like it has good packages with the EPDM liner:


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Old 01-12-2009, 11:16 AM   #2
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Rigid plastic liners are limited to their shape, so if you are wanting to create a more natural shape go with the EPDM. To me, EPDM liners are better because you can create your own shape and size and I feel you can more easily create a seamless transition between the landscape around them and the pond itself. As long as you keep them clean and filled they should last a good while. Plus, you can add plants and/or small trees around the pond to cast some shade. If you are going to have fish in it, this will also help keep them alive and happy because they too love shady spots. If the pond is low on water and the bare liner is left exposed it definitely can deteriorate much quicker, so keep it filled. EPDM liners are also easier to repair if the get a tear in them.

That being said, rigid plastic liners to have their place and advantages. Use whatever will work best in your situation.


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Old 01-12-2009, 02:52 PM   #3
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I made mine with ferrous cement. The skimmer and waterfalls pond is a plastic liner, the stream is a liner. All have lasted 15 years now with no leaks. As long as you install them correctly you will have no problems. This pond is very large 15,000 gallons and has about 45 koi.
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