I noticed that I was getting some seepage around the valves on my Groco
marine toilet. I checked the screws that fasten the bowl to the cross pipe and those on the
pump valve and noticed that they had somehow worked loose. I pulled the entire assemble apart and everything else seemed OK. So now I'm thinking why not put a thin film of RTV Silicone
sealant or something similar on all of these gaskets as an extra measure against
leaks. Anybody tried this or can see reason not to.