Discovered the problem last winter when I hooked up to the flush input and ended up flooding the bathroom inside. Forum members made it clear that problems with the inline valve on the flush line are prone to failing and causing water to leak or flow thru the vent rather than into the tank.
I have been pondering the modification to eliminate the valve all together but am still uncertain how to proceed because the valve is located under the bathroom sink cabinet. I can see it but cutting it out and reconnecting a straight pex line is near impossible given my senior citizen status and short arms. Help advice is requested.
I am thinking about loosening the hose inlet port on the outside of my White hawk so that I can get access to the pex connection on the back of that fixture. I should then be able to cut the line under the cabinet lower down where it will be easier for me to clamp on a new line to reconnect to the inlet. I am hoping that by loosening the outside inlet port and disconnect it from the pex, I will be able to push it back thru the wall and then removing the whole line/vent down to where I cut it under the cabinet.
I am then faced with reinstalling a line back up and thru the TT wall where I can reclamp the line to the inlet port. The reconnection to the line under the cabinet would be easier with that being nearer the bottom of the cabinet and therefore easier to access.
Using "Shark-Bite" type fittings will make connecting the pex lines much easier in cramped spaces as they do not have to be crimped or clamped. I have had to replace the vent/vacuum break valve in one of my fifth wheels and like yours it was located under the bathroom sink and a REAL pain to access. I do not recommend eliminating it though, as keeps the black water from backing up in the tank rinser lines. J.M.H.O.
Using "Shark-Bite" type fittings will make connecting the pex lines much easier in cramped spaces as they do not have to be crimped or clamped. I have had to replace the vent/vacuum break valve in one of my fifth wheels and like yours it was located under the bathroom sink and a REAL pain to access. I do not recommend eliminating it though, as keeps the black water from backing up in the tank rinser lines. J.M.H.O.
Will check out the sharkbite clamps. Not concerned about anything backing up in the line, it would be easy enough to blow them out with a little water pressure. Anyway my experience with this valve and the war stories I heard about them has convinced me to eliminate the thing and go with a direct input line,
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