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bob213's avatar
bob213
Explorer
Mar 01, 2020

Anti siphon valve for black tank flush

2012 FR Surveyor SV264RK. Can't seem to locate anti-siphon valve for black tank flush. I know what it looks like but it is not under sink in bathroom. When I use BT Flush I get water running from bottom of trailer. Guessing it comes from valve but since chlorplast(?) is in place I can't see anything from bottom. Any ideas where it could be located? No evidence of leakage inside trailer.
  • wopachop's avatar
    wopachop
    Explorer
    Mar 04, 2020
    A member here showed that low water pressure can cause them to leak.

    Any chance you're using a pressure regulator or the hose is prone to being kinked?

    Maybe a big strong blast of high pressure water could make it seal again.

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