We have a leak that is apparent on the floor of the bathroom every time we do a black tank flush. We have tried to find the non-return valve in the paneling under the entertainment area but to no avail. Can anyone help?
In our Silverback the black tank flush vacuum breaker valve is in the bathroom under the sink it is behind the other plumbing. It has two screw on fittings ours is black and has two blue Pex pipes attached to it. It is possible a fitting is loose.