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Joined: Mar 2003
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I have just dug a half acre pond. my soil conditions are a sandy clay mixture. I know I need to add a liner but am confused about what to use. I am considering 20 Mil HDPE Poly. Some say it is ok, some say I should use 30 Mil. This will be a fishing pond with no access for wildlife. I will be adding Christmas trees for structure.I need your help guy's, The dam is done and I am ready to put in the stand pipe.
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Joined: Apr 2002
Posts: 470
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Look up Bend Tarp and Liner and go to their website. I used their liner in my Koi pond and found it to be good quality and has help up great for 4 years with nothing covering it.
Bob
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Joined: Jul 2002
Posts: 257
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Bob, what mil poly did you use. I will be starting a project hopefully next year creating 300 plus feet of streambed and 2 or 3 kio ponds with a waterfall from my main gravel pit lake, 1 pump..pumping 8-10000gal/hr up into a waterfall pond (approx 15' head) then flowing down and back into the lake to recycle back up hopefully with no biofilters etc..just recycled lake water. Thanks
Rowly
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Joined: Apr 2002
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I used the PPL-24 was fairly inexpensive and worked out great. It was a little hard to work with as I had a horseshoe style pond but after the folds wer made it turned out good. I believe they will send you a sample if you request it.
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Joined: Jul 2002
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Thanks Bob......my 2 or 3 lined ponds will be fairly small in diameter and my streambeds not to wide or deep so hopefully this will work easily.
Rowly
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Joined: May 2004
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Is there anything wrong with using 40 mil EPDM? I plan on using it for a small(8' x 10') koi pond with a waterfall down to the big pond.
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Joined: Apr 2002
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Not at all just a little more expensive.
Bob
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Lunker
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Sandy clay isn't unusual. How do you know you will need a liner?
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Joined: Jul 2003
Posts: 30
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Bearbait, When my pond was constructed we dug a 20ft test hole and took samples at different levels in it for testing. Soil was sandy clay and at 20ft it was 100% sand. We decided to go with a depth of 9-10ft, 2% sand and this level was considered marginal by the testing company.The old timers in the area said it would never hold water and even my escavater was doubtful I would ever get it full! The first year they were right as running water in as fast as I could only gave me a little mud hole down at the bottom. Keep in mind that this is a tank, the only inflow is a large hydrant off my house well and 6 acres of runoff. Did more research the second year and was told to pack it so I hired a Vibrapacker which is a huge machine that has a roller with spikes on it and it vibrates the ground like your having an earthquake. After that I was helped out with a couple of nice rains, with that and pumping as fast as I could I filled this 3/4 acre pond in just a few weeks and now 2yrs later its still full. Its fun when I run into one of those doubters and get questions like how did you ever get that pond full, did you put a liner in it or something! Dont know if my experience will help you or not but good luck!!
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