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Clay Content - Pond Construction
Posted on 4/26/17 at 6:45 pm
Posted on 4/26/17 at 6:45 pm
Paging NASCAR... or anyone who can help.
Has anyone had success digging a pond and retaining water with soil that had less than 20% clay content without using a clay liner or sodium bentonite?
Has anyone had success digging a pond and retaining water with soil that had less than 20% clay content without using a clay liner or sodium bentonite?
4
Posted on 4/26/17 at 6:54 pm to Lion4Life
If NRCS were testing that, they would recommend against it usually. At best, you're dealing with a sandy clay loam. Too much pore space and potential for leakage.
ETA: When I've done pond borings and tested the bore samples, those type soils generally break down.
ETA: When I've done pond borings and tested the bore samples, those type soils generally break down.
This post was edited on 4/26/17 at 6:55 pm
Posted on 4/26/17 at 7:06 pm to Cowboyfan89
Would you then recommend sodium bentonite? Any experience with cost?
Posted on 4/26/17 at 7:12 pm to Lion4Life
quote:
Would you then recommend sodium bentonite? Any experience with cost?
How does that work? Do they just deliver a bunch of super sacks and spread it along the bottom or do they mix it in with soil?
Posted on 4/26/17 at 7:20 pm to upgrayedd
From my research there is three methods of instillation.
1) Slightly till in with existing and roll
2) Put layer down about 1" thick and roll another layer of soil on top
3) if existing pond, you can do the trickle method. Basically pour into the water
1) Slightly till in with existing and roll
2) Put layer down about 1" thick and roll another layer of soil on top
3) if existing pond, you can do the trickle method. Basically pour into the water
Posted on 4/26/17 at 7:42 pm to Lion4Life
No experience with cost, but yes, you would want to use something along those lines. I'll look some info up tomorrow on pond construction and see if we have anything related to cost in there.
Most of the guys I've dealt with that had a similar issue almost never even bothered building the pond after we tested the soil. They just wanted to be able to dig the hole, not have to put a liner.
Most of the guys I've dealt with that had a similar issue almost never even bothered building the pond after we tested the soil. They just wanted to be able to dig the hole, not have to put a liner.
Posted on 4/26/17 at 7:44 pm to Cowboyfan89
Awesome, thanks Cowboy!
Posted on 4/26/17 at 7:51 pm to Lion4Life
Just a quick search on google showed that the price per pound varies by the way it's sold, how much is sold, and who is selling it. Saw a 45 lb bucket for basically $1.77/lb, and a 3,000 lb bag for $3.33/lb. Seems like one of the largest local suppliers is out of Texas, but they only have a page to request a quote.
Posted on 4/26/17 at 9:25 pm to Lion4Life
It depends on how much flow into your pond you have. But no matter what, whatever is downstream from you will stay wet and therefore at a greater potential to move. This includes your dam.
Posted on 4/26/17 at 9:29 pm to Lion4Life
you read up on it on pond boss? some people have luck with it while others don't. it may be worth getting a geotechnical engineer or someone to give you their recommendation before shelling out the money.
Posted on 4/27/17 at 7:12 am to Texas Rig
No, I haven't even been to pond boss website. I will check it out. I was just curious if anyone on the OB has built a pond that retains water with less than a 20% clay content.
Posted on 4/27/17 at 7:52 am to Lion4Life
I talked with one of our guys this morning. 20% is actually the minimum clay content we will recommend for building a pond, but you really need to have a good idea of what the bottom of your pond is going to look like. That is still 80% silt/sand, which leaves a lot of potential for seep. You should be alright with a dugout pond at 20%, but a leveed pond will have a higher potential for seepage.
He also recommended using your normal, run of the mill clay because it is cheaper than bentonite and will do the job just as well. Even just stockpiling the clay you dig up and then lining the pond with it will help.
If you haven't worked with your local NRCS office on it, I would suggest it. They can really help you out with the design and whether your soil is going to be good for a pond construction.
He also recommended using your normal, run of the mill clay because it is cheaper than bentonite and will do the job just as well. Even just stockpiling the clay you dig up and then lining the pond with it will help.
If you haven't worked with your local NRCS office on it, I would suggest it. They can really help you out with the design and whether your soil is going to be good for a pond construction.
Posted on 4/27/17 at 8:28 am to Cowboyfan89
Cowboy, I really appreciate your comments. My local NRCS rep came out yesterday and performed 7' soil probes. Waiting to get back his report and will proceed further with him. Do you have an email address you can share?
Posted on 4/27/17 at 8:44 am to Lion4Life
Cowboyfan89td at gmail.
Who went out and did the borings?
Who went out and did the borings?
Posted on 4/27/17 at 9:23 am to Cowboyfan89
Thanks, email sent.
Posted on 4/27/17 at 1:43 pm to Lion4Life
Posted on 4/27/17 at 2:00 pm to mack the knife
Mack,
I must have missed this thread. Thank you for the link. Interesting information, I have never heard of just adding Salt.
I must have missed this thread. Thank you for the link. Interesting information, I have never heard of just adding Salt.
Posted on 4/27/17 at 2:03 pm to Lion4Life
plain old table salt (NaCl) that you can buy in bulk from one of the salt mines is MUCH less expensive than buying spec clay
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