Fresh water (empty) drop valve

[BusyBuilder]

Our Hymer B544 is leaking water from the drop valve that empties the tank (the tank is in the floor space).

We've just been away and noticed at our destination we had lost half our water and a small leak from under the Moho. The tap was tight but I gave the valve another turn and it made a crack sound, so not sure if I've definitely broken it now. But the water leak didn't get any worse.

is there a drawing/diagram of this mechanism so I can see how it's assembled and works ?

Can it be repaired/replaced ?

 

[SandraL]

Fresh Water tank emptying - have I broke it?

Completed the drain-down of the fresh water tanks and Truma heater/hot water boiler for the first time and decided to close up the drain valve on the tank after a couple of days. At first I opened it up a bit more and a drop more water could be heard splashing out and then I turned the knob to...

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