midexp
Active Member
- Oct 5, 2016
- 424
- Boat Info
- 1999 40' Sundancer
- Engines
- 454 merc
My new FW pump seems to have a hard time sucking up the water from the FW tank (that’s why I replaced the old one). The hose coming out of the FW tank runs along the floor of my bilge (tank is not accessible. Somewhere midship on port side) and stops just beyond the bulkhead separating the cabin from the bilge. From there, it takes a 90 deg. bend and connects to the pump suction side about 2 ½ feet up. When I disconnect the hose coming from the FW tank at the elbow connecting it to the pump, no water comes out. Which implies my FW pump has to suck the water from the hose connecting to the tank. Does anyone know if the water from the FW tank should have enough pressure head from the height of the water level in the tank so that water should flow out without having to get sucked out by the pump? Not sure if my question makes sense? In other words, if I disconnected the hose coming from the FW tank, would it drain out on its own?
Or could there be a vent that's plugged which is why the FW tank doesn't drain? I stuck wire in the small vent on the side of the hull and didn't find anything like lint or spiders.
Thanks
Or could there be a vent that's plugged which is why the FW tank doesn't drain? I stuck wire in the small vent on the side of the hull and didn't find anything like lint or spiders.
Thanks