black water clean out connection leaks
2016 Passport Ultralite 2770. Maiden voyage was this past weekend. Everything worked but 2 items. 1. Found out if you leave the bathroom door open, it blocks the intake vent for the furnace and ap...
Forum Discussion
hohenwald48 wrote:OldRacer wrote:
just solved the problem today.
straight thru inside the RV replacing the vent/check valve and put a vaccum break check valve on the outside. It screws onto the hose and then into the opening of the trailer. Does the exact same thing.
I don't think it does the same thing. The original was in place to prevent waste tank contents from siphoning from the tank and out thru the garden hose.
The one you installed (assuming it's a hose bib vacuum breaker like you would use on your house) is designed to keep the contents of the garden hose from siphoning back into the waste tank (house). It will allow waste tank contents to siphon out thru the garden hose and into the public water system.
When connected to hose bib (cg) water can only flow away from hose bib and when you turn hose bib off vacuum breaker allows water in hose to depressurize.
Now if you install it at other end of hose vs hose bib water will still only flow away from hose bib and when you turn water off vacuum breaker will still allow the little bit of water at RV connection to depressurize and then the check valve inside the flush connection will close
Hose bib vacuum breaker is going to work the same regardless of which end of hose it is on.
