The tank valves on my cedar creek silverback are cable type. The one for my black tank is getting hard to open. How do you lube it as it is hidden? Do I have to drop the belly pan?
Follow the instructions. If I remember correctly, you dump it in your tanks when they're clean and empty, and then use normally. One bottle was enough to do several tanks (I did two in my old travel trailer, and all four in my new fifth wheel with the contents of one bottle).