Oldersalt
Senior Member
- Joined
- Jun 10, 2016
- Messages
- 204
- Location
- USA
- Vessel Name
- Pacific Star
- Vessel Make
- 1990 Grand Banks 32 #834
With the Y-valve in either position, hitting the macerator pump just seems to blow bubbles out of the overboard (below water line) pumpout line. With Y-valve in "deck" position the dock-based pumpout machine seems to pull contents out just fine.
But up here in Canada I really need to be able to pump overboard. I can't figure out why I can't pump overboard.
If the tank contents are prettly low, could it just be sucking air from the vent line? But why would it blow bubbles in both positions? Or have I destroyed the macerator pump?
Details:
1990 Grand Banks 32. Raritan SeaEra electric toilet with fresh water flush. Standard Johnson (?) macerator pump.
Standard plumbing as far as I can tell.
25-gallon tank
toilet empties into bottom of tank.
air vent at top of tank goes to just above the waterline
Deck pump-out draws from top of tank thru Y-valve
Overboard macerator pump draws from top of tank to outlet just below waterline
But up here in Canada I really need to be able to pump overboard. I can't figure out why I can't pump overboard.
If the tank contents are prettly low, could it just be sucking air from the vent line? But why would it blow bubbles in both positions? Or have I destroyed the macerator pump?
Details:
1990 Grand Banks 32. Raritan SeaEra electric toilet with fresh water flush. Standard Johnson (?) macerator pump.
Standard plumbing as far as I can tell.
25-gallon tank
toilet empties into bottom of tank.
air vent at top of tank goes to just above the waterline
Deck pump-out draws from top of tank thru Y-valve
Overboard macerator pump draws from top of tank to outlet just below waterline