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Old 06-16-2012, 01:08 AM   #24
BruceK
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City: Sydney
Vessel Name: Sojourn
Vessel Model: Integrity 386
Join Date: Oct 2011
Posts: 13,333
Late to this, but Nigel Calder has some good ideas on design and materials,see "Cruising Handbook" pp213-215. He does not like s/steel or aluminum tanks.At page 208 he deals with fitting a "fuel sampling/draining line" at the lowest point of the tank,ie lower than the feed line, with a manual pump to draw off water & sediment. I was sure he had a diagram of a tank with an extra sump lower than the tank floor,but can`t find it.
My diesel man successfully drew off the water/sediment from screw in plugs,without valves,he didn`t fill the bilge with diesel, as I would have, must be a skill to it. I`m guessing the reason valves don`t get fitted is because they would get stuck.BruceK
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