Jere Lull wrote:
Don't forget to leave about 3" for the top-of-tank fittings.

1.5" elbows need 5"...sweeps about 7".


--
Peggie
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Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://shop.sailboatowners.com/books...ku=90&cat=1304