Originally Posted by robbi
The waste valve on our gray tank is stuck closed. Didn't realize it until the tank was full and water backed up in the sink. How do you install a new valve with a full tank without having a mess?? HELP
We have a 2012 class A Georgetown
Can we get a little more info?
When you pull the handle does the handle pull out and leave the "gate" still closed? That is pretty easy to check with a stiff wire up the drain.
If the handle IS pulling the gate open then you may have the dreaded plastic disk from the hole saw that was used when the tank was installed. The disk washes over the opening thus blocking it. We did and it was the factory that went in to remove said disk.
Good luck and let us know.