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...
I changed a black water valve once - dump and flush is a great idea! I did that and then put an oil catch pan underneath as I took it apart. Make sure you have the right tools first! I fought mine for a bit and then cleaned myself up enough to go inside and get the right tools. Once I had the right tools, it was an easy job.