OK, here's the "dumb question" of the day...
On our old class C there was a plastic valve on the outside you would open, and hope it didn't break off in your hand, and the tank would empty. On our 34T under the rightside bed (rear bdrm) there are three valves marked: "Tank Drain"; "Cold Drain" and "Hot Drain". With the pump "on" the Tank Drain seems to do nothing, the other two pump their water into the gray tank..
Here's the question: What is the proper way to drain the tank? I'm concerned that if I just run the pump it will go dry and injure itself. The water has some chemicals in it so we don't want to use it as is.
Thanks, John

Hi John, if your question is so dumb huh come nobody (including me) can answer it? he he I'm wondering where the drain is??? on our 30 Breakaway if anyone happens to know. I miss filling up my dogs waterbowl outside. I guess I'll have to tap in and install my own petcock outside...
Larry and Heidi in Clifornia