Pond Boss Forums POND CONSTRUCTION Soil questions SoilFloc Polymer Sealant

What I learned RE true water table ponds:

For existing water table ponds sealing can be done. This is a situation where I like to see bentonite used with the sealant, adding inches to the bottom. Or, I’ve seen dragging the bottom of the pond to disturb the top 2” (4” max) prior to applying be very effective as well; this is where ponds need to have good clay content. People will be concerned that the sediment will settle out too fast, but it won’t be tight until the polymer meets with it. It should be done in one application if possible, meaning the drag happens (slow drag) in front of the applicator in his boat.

I don't know if treating a water table pond is worth the risk, frankly. If there existed a small cell upon which one could experiment at low cost, I'd be more inclined to recommend it.

Hope this helps.