You could have mixed bentonite into the soil to help earthen ponds retain the water you spread it over the soil and mix it in with a root tiller I believe 12 inches is optimum.Did you add anything to the clay? We have a 60' x 30' x 6' deep pond - after years of losing water and last year when it went completely dry we ended up lining it. We put the liner in last fall and now getting to the landscaping. We've noticed that we have lost zero water with the liner and realize it was losing ground water all this time.
good morning. I tried to compact it with a sheepsfoot roller. I ended up hanging it up in the pond! I think it helped a little if I could have finished I believe it would have done the job. I also dropped some bentonite clay in it along the shoreline as I add water. I Have also purchased 3 buckets of a product called damit from Shalex Industries. It’s a polymer based sealer. It is dropping about 2 inches a week right now. So I’m not sure how it’s going to turn out. I may have to line it if it doesn’t seal. I’m still hauling in about another 20,000 gallons. Then I’m going to watch it through summer and fall. If it doesn’t hold I will line mine. Just trying to avoid that $5k tag on a liner. Fingers crossed!! Thanks for asking! Have a great day
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