Replacing Gray or Black Tank Valves
My brand new Solera W came with some drain valve problems. The black tank drain leaks and the gray tank valve leaked so much that you could hardly call it closing. Both were hard to open or close.
I tried flushing everything a few times to see if perhaps some debris was blocking them from closing. That produced no improvement and when I went to open the gray tank to flush it out the last time, the valve handle broke off. So, I need to replace the gray valve for sure and will likely want to replace the black one at the same time.
My selling dealer is far away and trying to get work scheduled on an RV this time of year is challenging. So, if possible, I would like to do it myself to save the long trip and to get my unit back in service as soon as possible.
There is not much room between the black and gray tanks where the valves are. There is not enough give to separate the flanges enough to remove the old valve or insert a new one. I notice that where the pipes exit the tanks, there is a hose clamp. I am wondering if I would be able to loosen those clamps and push the pipes into the tanks far enough to get a little clearance for removing and reinserting the valves. It looks like there is some glue or cement where the pipes enter the tank where the hose clamp is located. I don't want to damage the tanks, but I was wondering if it is possible to separate the fitting by loosening the hose clamps or if, despite the presence of the hose clamps, the pipes are permanently attached and I will have to cut some pipes and re-attach after the new valves are installed. Any suggestions?