Easy Pro: USED GOOD CONDITION| Bottom Drain | 4-inch with diffuser | #0173

Unit Condition:  Used and Good Condition, Damaged Box Sales final on discounted equipment.   Many pond builders have found that adding a bottom drain helps keep a pond cleaner. Fish waste and other muck that accumulates on a pond bottom can be easily removed by a bottom drain. Ponds that are over 2′ deep can become stagnant without a bottom drain.     BDK4A Heavy duty, roto-molded design offers superior strength 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 For use with 4″ schedule 40 PVC fittings and pipe, use 4″ male adapter (MA40) to connect to 4″ pipe, use reducing male adapter (RMA4030) to connect to 3″ pipe EBD4A incorporates an air diffuser into the dome lid – incoming air is delivered up through the center stand pipe allowing air tubing to be installed under liner EBD4A tubing adapter is 1/2″, recommended air flow through diffuser is .5 – 1.5 cfm     BDK Bottom Drain Kit Instructions   Bottom Drain Instructions   3" Bottom Drain Instructions   4" Bottom Drain with Air Diffuser Instructions