StephenKatSea
Active Member
We have a 2008 BH3670. The black tank has a "flush out" line. The supply hose for the flush system appears to run from the backside of the UDC, across the "maze" of wires & hoses in the basement, then up into a hole, aft and to the "door-side" of the large WC stool pvc dishcharge line, it then re-appears out of the same hole and runs down and connects to the side of the black tank. I am told there is a "Vacuum Breaker Check Valve" within this "flush out line". Is the VBC valve within the wall, at the rear of the stool and forward of the salon electrical panel? If so, how do you access that "VBC" valve? If the black tank is pressurized (such as by a flush out line inadvertently left slightly cracked open - allowing the black tank to fill to its max), could this cause the "VBC" valve to activate and dump water within the wall?
That seems to be the case for us. We awoke to find a substantial amount of water at the base of the carpeted steps leading to the bedroom/bath area. After removing all contents and the panels of the basement, no obvious leaks were noted on the water lines within the basement. All water was accumulated at the base of the support framing in the aft basement area and also within the bottom of the aft kitchen counter and within the void space behind the electrical breaker & fuse panels.
How can you get to this "VBC" valve and vertical run of the black tank flush line without cutting into the wall?
Look forward to any input on this topic. Thanks, Steve
That seems to be the case for us. We awoke to find a substantial amount of water at the base of the carpeted steps leading to the bedroom/bath area. After removing all contents and the panels of the basement, no obvious leaks were noted on the water lines within the basement. All water was accumulated at the base of the support framing in the aft basement area and also within the bottom of the aft kitchen counter and within the void space behind the electrical breaker & fuse panels.
How can you get to this "VBC" valve and vertical run of the black tank flush line without cutting into the wall?
Look forward to any input on this topic. Thanks, Steve