Welcome to others newbees out there from a newbee on here. Been camping most of my life, got myself my first 5'er, 2006 Cedar Creek Custom 37CKQS. A couple of questions if anyone can help me. 1) My electric dump valves not working but in the open position. Previous owner did install a manual valve on the black water tank. Any easy checks to do to troubleshoot these valves? Got the belly insulated and closed in so no quick access to the valves. 2) Holding tanks, black self explanatory, but here it gets fuzzy for me. I got grey and galley tanks also. There is a washer drier combo unit. Do I understand to use the washer/drier it drains straight into the master drain pipe? What drains into the galley tank? Since both grey and galley tank valves are open it will be difficult to use the process of elimination running a faucet and seeing which tank it drains into. Understand bathroom sink and shower and kitchen to grey and washer to galley? Googled it but there seems to be a couple schools of thought. Thanks for letting me bend our ear.