PhilipH
Member
The bunker tankage on ships is often tanks forming an integral part of their bilges. Obviously, they also cannot have drains from the lowest parts of these tanks. What they do have, and what boats like your's would greatly benefit from, are "day use" tanks. In your case, this could be in the form of a modest tank, giving say a full day's motoring, installed at a higher level. The day use tank would be replenished from your main tank, by an electric or manual pump, and could even be arranged to give a gravity feed to the engine. The day use tank would be equipped with a small sump with a drain valve.
Not possible without completely messing up the interior of the boat.
Thank you for the suggestion.