[ocho]

When long term camping with hook ups i will leave the very tanks open and the black tank closed. I'll drain the black tank once a week or so. Well this time i left the front shower grey tank open and accidentally left the kitchen grey tank closed. I realized this when the kitchen sink wouldn't drain. So go out to pull the lever and notice i have water dipping from the center of the Rv. I have black sheeting that covers the bottom so it had filled that up to a point where it was leaking from a point higher up. Anyhoo my question is this. Is there a overflow vent associated with the grey tank? If it fills up is there safety valve to allow the water to drain? I'm really hoping i don't have a leaky grey tank. Its never leaked and there is no damage to the underside.