Thanks for all the replies, i am going to try using a dissolving type cleaner, then a bottle of valve lubrication, if that don’t work I’ll just have to cut me an inspection hole to see where I need to start. If I have to cut it, I will cut it on 3 sides folding it towards the front so the wind won’t pull it back open and go for it. May even try the electric valves. I researched one that turns the light off thru limit switch when fully closed.
My problem started with the back tank leaking, now it’s both black tanks. Thanks again for the tips.
