Thanks Guys. I got it fixed. I replaced the 2 outer valves and that did the trick. Not sure when I'm going to get around to the other 2. Probably when it starts leaking again
Hopefully I've got the gemlins out. We've been on the boat 2 weeks and I've replaced 2 fuel lines due to leaks, fixed a fresh water leak at a connection, fixed a generator oil leak due a small piece of paper towel wedged between the oil filter gasket and it's mating surface on the block and now this toilet issue. Whew, time for a beer.