Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Silt catch pond repair

I can't answer all your questions. But, from my research on natural swimming pools, the area that is needed to be in plants to clean the water (removing nutrients to facilitate clear swimming water in place of a mechanical filtration system and chemicals) needs to equal the area of the swimming pond. It also has to receive full sunlight for the plants to flourish.

I don't know if the retention time of the water in your catch pond would be long enough to lower the nutrient level enough to help. For a silt catch pond, I think it would work great. But, I don't know how much silt comes into your pond from the upstre4am side vs. the natural eutrophication process in your 2.5 acre pond. i.e. leaves, etc., and other silt washing in from the banks of the pond.