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Jan 10th, 2023
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Joined: Jan 2018
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OP
Joined: Jan 2018
Posts: 5 |
I have installed liners in leaking ponds in the past and sealed up a few bad spots with bentonite but never did an entire pond with bentonite before, I know how much to put down but was wondering if spreading soil over it after tilling and compacting is recommended, I have seen it both ways but any advice or past experiences would be greatly appreciated.
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Joined: Jun 2007
Posts: 7,099 Likes: 23
Ambassador Field Correspondent Hall of Fame  Lunker
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Ambassador Field Correspondent Hall of Fame Lunker
Joined: Jun 2007
Posts: 7,099 Likes: 23 |
Nick, Bentonite tends to become colloidal and not settle out of the water....I'd add a foot of good compacted soil over the properly tilled/compacted bentonite mix if I were doing the job.
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Joined: Sep 2014
Posts: 3,668 Likes: 57
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Joined: Sep 2014
Posts: 3,668 Likes: 57 |
I have a lot of experience with bentonite but in a different area than ponds. I look at it like this. Bentonite is a clay and one wants a layer of clay on the bottom of the pond so it will hold water. I would add a layer of clay, not disk because that would dilute the clay, pac the clay down and then I might add some soil on top of the clay to reduce the bentonite mixing in the water and becoming a colloidal or water suspension problem. I am no pond seepage expert but that is how I would do it.
Do not judge me by the politicians in my City, State or Federal Government.
Tracy
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Joined: Jan 2006
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Moderator Lunker
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Moderator Lunker
Joined: Jan 2006
Posts: 16,055 Likes: 277 |
Due to my past experience, I have no advice. But, you can call Texas sodium bentonite for advice. The owners name is George. Don't remember his last name. Nice guy.
Last edited by Dave Davidson1; 02/09/18 08:04 PM.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
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Joined: Sep 2015
Posts: 40
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Joined: Sep 2015
Posts: 40 |
I don't think you would hurt anything by adding additional clay on top of the bentonite. I just finished up patching a rocky area in my pond that I believed was leaking. What I did was remove dirt over the rock, applied bentonite in power form and covered it back up with dirt. I then used my disc to work some in on top of the dirt too and pack best I could with my tractor. Then I pulled in clay from above the leak for added protection.
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