Cruising Sailors Forum Archive
vacuum break not necessary on output of tank 
In Response To: Tom, the issue isn't the toilet ()
Just keep the thru-hull closed except for when pumping.
Keep it Simple Sailor.
Rich
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
- The pump is designed to pump up over 6' to the top of a vacuum breaker and then down a hose back to a holding tank.
- I guess I'll have to keep up with with a good working joker
- Tom, the issue isn't the toilet
- vacuum break not necessary on output of tank
- Yes there are simple diagrams here is my example
- vacuum break not necessary on output of tank
- Tom, the issue isn't the toilet
- I guess I'll have to keep up with with a good working joker
- The pump is designed to pump up over 6' to the top of a vacuum breaker and then down a hose back to a holding tank.
- 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
