My original holding tank was 3 gallons. The vent was halfway up,(pic on dock) not at the top. :-0 Would only hold 2 gallons before sending up the vent hose. Also like all tanks you can't get the last gallon out before sucking air. So capacity of tank was 1 gallon. Useless.
So I bought a 5 gallon with proper vent, and new hoses. Finally putting it in. But even with 4+ times the capacity, and actually usable, still kinda small. So I wanted to put in overboard pumpout. The boat has a lockable (locked) Y valve for direct over. But none for tank, which must be pumped from deck.
I wanted a diaphragm manual or electric pump, but too big for space. So looked at macerator which will fit on the aft bulkhead. My problem is space. If I put a Y fitting or valve on the tank exit, with the extra hoses to and from the pump, and looking at the space needed for the drawer frame (on v-berth in pic) on top, it would be veery tight. Might not work. Plus other complications.
I do not want to modify the cabinetry.
Jeez long story. Sorry. Anyway if I just put it back in as it was, I'd be done before finishing this post.
But I'd still want to be able to empty that tank offshore, if I had been in an anchorage etc with no pumpout facility.
So the the question, finally, is has anyone used a hand bilge pump (pic) with maybe a pumpout nossle(pic) to do it from the deck? One with the 6 foot hose to dangle in the water. Then just pump sea water through it to rinse. I don't want some elaborate setup and I'm thinking this might work.
So I bought a 5 gallon with proper vent, and new hoses. Finally putting it in. But even with 4+ times the capacity, and actually usable, still kinda small. So I wanted to put in overboard pumpout. The boat has a lockable (locked) Y valve for direct over. But none for tank, which must be pumped from deck.
I wanted a diaphragm manual or electric pump, but too big for space. So looked at macerator which will fit on the aft bulkhead. My problem is space. If I put a Y fitting or valve on the tank exit, with the extra hoses to and from the pump, and looking at the space needed for the drawer frame (on v-berth in pic) on top, it would be veery tight. Might not work. Plus other complications.
I do not want to modify the cabinetry.
Jeez long story. Sorry. Anyway if I just put it back in as it was, I'd be done before finishing this post.
But I'd still want to be able to empty that tank offshore, if I had been in an anchorage etc with no pumpout facility.
So the the question, finally, is has anyone used a hand bilge pump (pic) with maybe a pumpout nossle(pic) to do it from the deck? One with the 6 foot hose to dangle in the water. Then just pump sea water through it to rinse. I don't want some elaborate setup and I'm thinking this might work.
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