my 73 rear bath 31 sovereign
has a black tank valve that slowly lets the liquids leak into the grey water area.
I have gone as far as pulling the toilet and bribing my 9 yr old son with $10 to stick a trash bag covered arm in there and scrape the valve. that helped a little and I was able to close the valve all the way but it still leaks.
The valve itself is white with a handle on the top that has metal clips on the side when you close it all the way. I can see 4 screws holding it on.
How do these things come out? Can I replace the valve parts when I remove the screws without replacing the whole valve? Are there different options on replacing it?