Vacuum Breaker

[Ptribbey]

I noticed that when I was flushing out my black tank I was starting to see a water leak. While changing out my sewer valves I traced out the water leak. It appears that Winnebago ran the washout inlet to a vacuum breaker, and check valve inside my side wall with no way of getting to it. Great design, I suppose the vacuum breaker wasn't ever suppose to leak, or go bad.

My solution was to use a inlet flange hose connector with a check valve and run the line directly to the washout nozzle.

I understand why the coach was designed to have the vacuum breaker, and check valve above the level of the toilet in the event someone might overfill the tank, but I can't understand why it wasn't made with some way to get to it.

Don't know how many of you guys have had this problem, but I thought you might want a heads up if your washout line starts leaking one day.

[Ptribbey]

I noticed that when I was flushing out my black tank I was starting to see a water leak. While changing out my sewer valves I traced out the water leak. It appears that Winnebago ran the washout inlet to a vacuum breaker, and check valve inside my side wall with no way of getting to it. Great design, I suppose the vacuum breaker wasn't ever suppose to leak, or go bad.

My solution was to use a inlet flange hose connector with a check valve and run the line directly to the washout nozzle.

I understand why the coach was designed to have the vacuum breaker, and check valve above the level of the toilet in the event someone might overfill the tank, but I can't understand why it wasn't made with some way to get to it.

Don't know how many of you guys have had this problem, but I thought you might want a heads up if your washout line starts leaking one day.

[Charles99]

so the same thing happened to me. I was flushing my tank at a park with low water pressure. There was not enough pressure to seal off the vacuume breaker and it flooded the bathroom in my RV before I noticed the leak. You can get to my breaker under the bathroom sink. I removed the breaker and left the check valve in place. If i overfilled the tank, I would perfer that it did not overflow into my rv anyway.

[Rich Bock]

This thread is interesting but I'm confused. I can't see how the black tank vacuum breaker could be under the sink. Grey tank, yes. But not black tank.

[skigramp]

Rick ...

The vacuumn breaker is always on the street side of the coach because that is where the flush out is located ... so if your sink is on the street side then the vacuum breaker could be under the sink ...

The vacuumn breaker has nothing to do with which tank the sink drains into ...

[Rich Bock]

SkiGramp: So there is only one vent for both tanks?

[Dsouthw524]

The discussion was started talking about a water line vaccum breaker. The venting of the tanks is another matter.