4" Heavy Duty Koi Pond Bottom Drain

Bottom drains enhance water quality by improving water circulation and automatically removing debris such as fish waste, uneaten fish food, algae etc. from the bottom of the pond before it builds into a layer of sludge and muck. As water is drawn into the drain, it automatically vacuums the bottom of the pond.

4" Bottom Drain Features:

• Welded FPT threaded inlet eliminates the need for rubber coupling
• Threaded center stand pipe securely attaches dome lid to base
• Sixteen stainless screws securely attach liner ring to base with water tight seal
• Heavy duty, roto-molded design offers superior strength
• Threaded 4" female inlet for use with 4" schedule 40 PVC fittings and pipe

4" Bottom Drain Instructions