Air Domes & Bottom Drains
This Bottom Drain should be the only one considered when designing your Koi Pond, It is constructed using only the best materials because it needs to be 100% reliable once built into the pond base. This High Quality Bottom Drain unit completely replaces the "Standard Bottom Drain". The most noticeable feature is the extra connection in the sump of the drain. This allows the air supply hose to enter the Spindrifter Bottom Drain sump independent of the water outlet pipe, thus eliminating the possibility of restriction to the water flow and somewhere else for blanket weed to attach.