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Joined: Jul 2011
Posts: 3
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OP
Joined: Jul 2011
Posts: 3 |
Where I live in Oregon we get an average of 45" plus of rain each year. We have dug a small pond, approx 40' long by 25' by 8' deep. The composition is 3' of top soil and the bottom 5' is clay. The pond fills easily in the wetter weather via rain and seepage.
Most of the leakage each year seems to drain out through the top soil. To cut down on the water loss during the summer months I am planning to drain the pond and then apply Sodium Bentonite on the pond walls.
My question: Do I need to apply the Bentonite on the walls all the way to the bottom of the pond or would it suffice to just cover the top soil down to the 3 to 4 foot level? The angle of the walls is 45 degrees.
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Joined: Jan 2009
Posts: 28,537 Likes: 842
Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,537 Likes: 842 |
If it were my pond, I would overlap the clay layer by a couple of feet. For best results the bentonite should be incorporated into the top layer of soil, then compacted.
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