Pond Boss Forums POND CONSTRUCTION Soil questions Sealing shale bottom

Hey Jim
Most shale ponds in our area hold water after a couple of small draw downs, your ideas on the board will work on the small pond do not align the inflow and out flow offset 90 degrees and use energy dissapator after inflow such as rocks or tree cuttings. Dig your sump pit oppisite the outflow for ease of cleaning from shore if you are using a draw down pipe to empty pond use two weep collars around pipe and pack the middle of the two collars with mason sand to catch fine particles if any water bypasses
Good Luck