Heavy Duty Bottom Drain with Air Diffuser
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.
Features:
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
BWFN is minimal expanding foam – fills in cracks with less trimming of excess foam
Additional Information:
Weight 9.65 lbs 
