Cruising Sailors Forum Archive
And you will have to pump up hill from the head to the top of the tank.
In Response To: That tank will have a lot of pressure on it from the 40" of "head" pressure ()
Make sure the pump on your head is up to the task. My tank used to be vertical against the hull behind the head but the inlet was only about 20" above the bowl. I had no problems pumping but I don't know how much head pressure the typical head pump can overcome. You will end up with effluent standing in the discharge hose. Mine used to seep back into the bowl before I replaced the pump valves. You should keep the discharge line as short as possible and try to flush water through it regularly so you don't have the smelly stuff sitting in the hose.
Messages In This Thread
- Thin gravity holding tank question
- That tank will have a lot of pressure on it from the 40" of "head" pressure
- And you will have to pump up hill from the head to the top of the tank.
- You should pump up to a vacume breaker that is high anyway. You don't want to have the tank siphon back into the head.
- I checked with Raritan and they said I would pump up with no problem
- Not really...
- The sides of the tank have to thicker or reinforced more heavily to handle the deeper tank.
- It empties by opening the seacock and flowing into the sea
- And you will have to pump up hill from the head to the top of the tank.
- I think he means that he won't pump the tank out, he'll just open a valve and it will drain into the 3 miles offshore...
- We have a gravity tank like you describe, butlarger
- What I suggest is...
- That tank will have a lot of pressure on it from the 40" of "head" pressure
