Originally Posted by Lupo
Hey everyone we just purchased a 2003 Sunseeker 3100SS LE and I have an interesting issue. My RV has 3 valves to release the Black, Grey, and Galley tanks. The two on the drives side I assumed were (from front to back) were Black, Grey, and on the passenger side Galley but that doesn't seem to be the case. When I have both the valves on the driver side shut and the cap on the dump hose connector blue water builds up behind the cap. I did this to try and figure out what the valve on the passenger side was. Logic says that its the galley valve because the show and sink are on that side of my RV and the bathroom is on the driver side. Can someone please help me out and tell me what each valve is so I can quit banging my head against the wall. When I pull the release on for the two valves on the driver side after all of the blue water comes out there is more water released / gushing sound through my hose. So either the black water is leaking out in large amounts or the valve is on the passenger side. What gives?
Different trailers, different designs. Will try to keep this general and hope it helps. You do have 3 separate tanks, 2 grey and one black. One grey is for the gallery, kitchen sink only. The other grey is the bathroom sink and shower. The black is your toilet only. Normally you have separate valves for each but the black and grey go into the same dump hose. Often the gallery has its own dump hose connection.
You want to get a clear hose connection and hook it up to the black / grey hose connection Using this clear fitting will allow you to see what is going on.
The black and grey go out the same dump hose connection but each has its own valve. When the black tank shows 2/3 full you empty it by opening its valve. After it is empty you then empty the grey tank. This will clean your hose for you. I always empty the gallery last for the same reason, to keep the hose clean.
If you are getting water behind the dump cap after you are done and you are sure the valves are closed tight? This normally caused by toilet paper being stuck on the valve allowing it to leak by. Do you have a black tank clen out? If not take an old garden hose and fish it up your dump connection to close to the black water tank valve and try to clean off the valve so it will close properly. This should allow the valve to close tight unless the valve is broken.