While winterizing my TT, when I pushed in the SaniFlush purge valve, it shot out like a bullet never to be found. Do I really need that thing? Isn't it really just there for code as a back flow preventer? Is it relatively a safe bet for me to skip the hassle of cracking he seal on the back if the trailer in order to pull it off and install this new fitting I bought? It's not as simple as pushing in a new purge valve as you have to crack out the flanged fitting and all to do it.
CLARIFICATION: I am talking about the SanTFlush on the back end of my TT. It is the tank flushing winterizing purge 'button' inside the SanTFlush inlet for flushing out the black tank. The winterizing instructions advised that one should push in the purge button as part of the process to allow any water still in there and under pressure to come out before it freezes. There must have been so much pressure that the entire guts sprang out of the fixed hose inlet fitting that is mounted to the outside rear wall.
In order to replace it I would need crack the seal around that fitting gasket, remove 3 screws, and somehow unscrew the fitting from inside the wall (the replacement appears to screw into something deep in the wall and then seal and screw the attached flange back on the wall). My SanTFlush that is missing the purge button is so well fixed in place that I hesitate to monkey with taking it out if really not all that necessary (even though I have the replacement part). It just seems superfluous if all it does is prevent black water from backing up into the hose if you forget to watch over the SanTFlush process when doing it (which I don't intend to let happen).
