View Full Version : Pond Liner Underlayment?????
astronatus
11-01-2005, 2:57 PM
I built a pond out of landscape timbers and plywood and now need something to put under the 45mm liner. I have heard carpet, but would cardboard work? Lots easier to work with.
By the way, I found a 15 by 15 Firestone Pondgard liner 45mm at BestNest.com for the cheapest anywhere on the Internet, 104.00 including shipping and they got it to me in 2 days. Sweet.
:headbang2
rvrrays
11-01-2005, 5:25 PM
I use pieces of insulating foam from the hardware store. It comes in various thickness and is in a 4' x 8' sheet. It can easily be cut to size.
It also helps hold in some heat.
Colin
spryandspringy
11-01-2005, 10:28 PM
You can use anything from newspaper to old blankets to carpet to professional spray insulation! The thing is, the better the padding, the longer the liner will last. You don't know a "pain in the ass" until you've had to try to patch a tear in a pond liner. Ugh!
If you want to replace your liner within five years (like you plan to re-dig the pond to make it bigger in a few years) then go with something cheap. Otherwise, do it right the first time. :-)
guesswho2005
03-14-2006, 8:02 PM
I tried them all, My best results were using an insulation board 1/2" thick, for the bottom then I used indoor outdoor carpet for the top. its pretty cheap now got mine at home depot. I put the liner directly on the carpet and it works fine.
Princley
03-14-2006, 8:10 PM
I tried them all, My best results were using an insulation board 1/2" thick, for the bottom then I used indoor outdoor carpet for the top. its pretty cheap now got mine at home depot. I put the liner directly on the carpet and it works fine.
I agree 100% works GREAT
I use pieces of insulating foam from the hardware store. It comes in various thickness and is in a 4' x 8' sheet. It can easily be cut to size.
It also helps hold in some heat.
Colin
i agree i will be using that on mine 2 inch pink board would be real good under the liner good luck with your pond
Nic :)
FishHeadSoup
03-15-2006, 12:21 PM
i used carpet pad under my pond you might be able to use some old pad from a carpet layer or carpet company.
works great!
astronatus
03-15-2006, 1:15 PM
I tried them all, My best results were using an insulation board 1/2" thick, for the bottom then I used indoor outdoor carpet for the top. its pretty cheap now got mine at home depot. I put the liner directly on the carpet and it works fine.
I started this thread several months ago, and decided to go ahead with some foam underlayment I had lying around as well as old blankets on the bottom. I also used cardboard boxes and other blankets for the sides. It was a rather uneven surface, but it has worked out fine over the past three months or so. No leaks or problems.
I went to get used carpet at first, but they told me sometimes razors get stuck in there, as well as staples and stuff, so I just went with what I had lying around the house.
I like carpet padding because of the price but have even used roofing felt, the secret there is use adhesive to bind the liner to the felt.
z24frank
10-22-2006, 4:29 AM
what kind of adhesive do you use to mate 2 pieces of liner together?
stotty
10-22-2006, 5:18 AM
It is a good idea to use an underlay under any lined pond to prevent punctures and leaks from developing. Do not cut corners here because if your liner leaks you will need to tear your pond apart and start over. Commercial underlays are now available but in the past sand, old carpet, felt, or even polyethylene bags have been used.
It’s not a cheap option but when I built my pond I bought a purpose built underlay for ponds something like this.
http://www.underwaterwarehouse.com/prod276.html
The stuff I got was also made to stop tree roughs growing through it .