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Old 02-11-2023, 12:45 PM   #1
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Default Where is the fresh water tank drain valve?

I've a (new to us) 2007 Crescendo 8390 CRW. When I attempted to fill my fresh water tank, water flowed out from under the front of the coach just as rapidly as it was pumped in. It was too cold at that time to unpack the basement and look for a shut-off valve. I've since moved a bit farther south and now I'm looking for it ... is anyone able to point me to an approximation of the location (other than "underneath," lol). I'm assuming (hoping) it's inline somewhere in the basement ... certainly no room to crawl under this beast with the air suspension lowered. I've gone through the owner's manual and can find no reference other than the low-point drain, which is in my wet bay towards the aft end.
Leaving next week to go back north and it's still below freezing there, so have to work from the tank as the park doesn't winterize their faucets.
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Old 02-19-2023, 10:18 AM   #2
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In my case, the low point drain is the only drain valves. There is no ďmasterĒ drain. If water was coming out under pressure, it sounds like your tank was full and itís the overflow youíre seeing. On mine, I can see the tank and therefore the water level from the curb side. Thatís also where my low point for the tank and pump is located.
Good luck and enjoy your coach.
2006 Gulf Stream Friendship G7
350 Cat, Crusier Lift w/ Honda VTX
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Old 02-19-2023, 06:55 PM   #3
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There are usually THREE Low Point DRAINS= HOT-COLD-FW TANK. GS commonly uses a little BLACK T-handle valves, LIFT to OPEN, Push DOWN to CLOSE. On my old Class-C, they are in the wet bay, next to PUMP and TANK. My 3 valves are side-by-side. Good Luck
2000 Conquest LE 6266, Class-C on 99-E450SD, 6.8, 2v, V-10
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Old 05-30-2023, 02:52 PM   #4
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On my 2007 crescendo it is in the bay under my city water fill connection. It is a small quick throw 90 degree valve at the bottom on the left. May or may not be labeled.
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