One of my dump valves has started leaking, just a drip for now . I have never had one of these apart, do you just take the 4 bolts out and slide the valve out and I would guess put new gaskets in. Any...
If the valve is failing then replacing it is no big deal, along as the tank is flushed well first (I flushed mine about 10 times be removing my valve and I still got a poo shower.
When I thought my valve was failing, in turned out to be a baby wipe that was lodged into the valve seat. I removed the cloth wipe and all good since then.