Cruising Sailors Forum Archive
A holding tank can't siphon into the head
In Response To: 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. ()
Assuming it is a normal top fill tank. The only time you could have a problem is when the tank is completely full and even then the problem isn't siphoning into the head. A siphon break in the line from the tank to the head is not needed.
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.
- A holding tank can't siphon into the head
- I checked with Raritan and they said I would pump up with no problem
- 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.
- 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
