Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? going to need some help

The silt is caused mostly by organic matter entering the pond and decaying, or by sediment getting washed into the pond over time. The build-up cn be slowed down by aeration which helps aerobic bacteria live in the pond bottom. It might take a few months for a pond with just muck on the bottom to dry out, but with the springs there, I think your best bet is to open the drain, get out as much water as possible, and then use an excavator to get the silt/sediment out. Be careful when you get past all the sediment. If the pond was built with a clay liner, you want to leave the clay liner in place.