i am looking at building ballast system for my 200vrs and plan on putting two 500's in rear and 250 in ski locker(small locker) and probably 150lb of lead in nose. i was wondering if i want to fill system fast should i tap into raw water intake or can i use the center drain plug hole. i only pull boat out of water midsummer and end so don't really need drain hole. attwood pump will thread into or through. also which size aerator pump does everyone recommend.
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