Thru-hull fittings, valves and hoses. Bright white thin is inbound rinse water, bright white thick is outbound waste, warm white

harald
Interesting enough we removed those hoses and laminated the holes shut. We now have a single 38mm ID hose from the bottom of the tank to the deck.

Why didn't you tap the flushingwater from an existing thruhull?

Good ideas are especially good when they come in time. ;-)

The existing water incoming thruhull was too far away I thought at that time. So you don't have the outbound underwater waste thruhull at all? Vacuum cleaning option only?

harald
That's correct. One tube from the tank up to the deck. Simple and easy. Just four hoseclamps and two joints.

We have the old pump on a board for emergencies, we use it on the deck in that chase. This hasn't been necessery though.