Squadron 55 Model Year 2009 on plumbing issues

[statgar]

I have a problem with a Tecma WC in the master cabin which is overfilling I've tried adjusting the timer on the controller but its on minimum now. I need to get to the valve in the supply pipe (fresh water) in the hopes that I can reduce the pressure. Does anyone out there know anything about the pipe layout on these boats before I start ripping the boat apart? I've traced it so far to the companion way stairs but then it disappears under the head of the master bed, I think it should probably go to a manifold somewhere but darned if I can find it. Also I can't find the holding tank/sea outlet change over valve I have the one for the day heads but not the master.

Any help greatly appreciated as always, there just doesn't seem to be a 'go to' contact out there for information on this boat, Fairline don't want to know as is the case with dealers BW.

 

[jfm]

There is no point searching for the tecma valve- you can’t reduce pressure by adjusting anything on it because it’s a simple solenoid open/shut valve. And if all your other taps are flowing fine then pressure isn't your problem. Feels like a controller timer problem or a pump flow problem where the flush water is filling the bowl faster than the discharge pump is emptying it. But it’s impossible to tell from your post

The master WC won’t have a changeover valve. It will dump to tank only.

 

[statgar]

Thanks JFM all makes sense particularly the master WC waste destination! I'm tending to favour a controller fault, despite the engineer telling me he has tried another one, as it runs much longer than the day heads and the bowl does empty rapidly. All we thought was that if we could get to the supply tap, not the solenoid one, we could reduce the flow which would have the same effect as reducing the flow time. I think I might just take out a new controller and an H2o in line tap that I'll install in the supply pipe that I can see. Thanks again.