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08-19-2013, 12:50 PM
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#1
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Member
Join Date: Jun 2013
Posts: 95
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Two grey water tanks and one drain valve?
Kinda new to RV'ing... I bought a 2007 Rockwood Signature Ultralite 8244S fifth wheel. On the tank level annunciator panel, it has a "galley" tank and a "grey"tank level. I only have one grey water drain valve on the outside. So I'm guessing both drain into a common drain and there is a check valve somewhere keeping the shower from back flowing in the kitchen sink?
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08-19-2013, 01:01 PM
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#2
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Moderator Emeritus
Join Date: Sep 2007
Location: Ontario, Canada
Posts: 4,327
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Unless the previous owner piped the 2 gray tanks together, you may have only one gray tanks. The factory set-up Rockwood would be a sewer connection for the gray/black tanks and a separate sewer connection for the galley tank. It's not unusual to use the same tank monitoring set-up whether all the tanks are there or not.
Does the galley tank ever register any level when you're using the kitchen sink and does it return to 0 after the gray tank is dumped?
Dave
__________________
Nights camped in 2013 - 55, 2014 - 105, 2015 - 63
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08-19-2013, 01:02 PM
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#3
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Senior Member
Join Date: Jul 2013
Location: BoCoMo
Posts: 2,784
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You may need to look a little more for the other valve. Mine has the black and one grey that is close to the tires. The other grey pull handle is two feet from the back bumper.
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Brother Les
2013 Forest River Salem Hemisphere SBT312QBUD
2001 CrewCab F-250 7.3 PowerStroke Diesel
SuperChip, BTS transmission, 6.0 Trans Cooler
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08-19-2013, 01:05 PM
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#4
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by 97Powerstroke
Kinda new to RV'ing... I bought a 2007 Rockwood Signature Ultralite 8244S fifth wheel. On the tank level annunciator panel, it has a "galley" tank and a "grey"tank level. I only have one grey water drain valve on the outside. So I'm guessing both drain into a common drain and there is a check valve somewhere keeping the shower from back flowing in the kitchen sink?
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Even if they both did drain into a common tank the shower drainage would not back up into kitchen sink unless the tank was full.
My guess is you have two waste tanks "black" and "grey"
If you only have one sewer outlet and two pull handles its assured.
Otherwise you'd have two sewer outlets and three pull handles.
Turbs
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08-19-2013, 03:07 PM
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#5
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Member
Join Date: Jun 2013
Posts: 95
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Yes, I have one sewer outlet with two pull handles.
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08-19-2013, 03:13 PM
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#6
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Moderator Emeritus
Join Date: Sep 2007
Location: Ontario, Canada
Posts: 4,327
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Then I would say that you only have 2 waste tanks...1 gray, 1 black. Even the current production 8244WS show only one gray tank.
Dave
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Nights camped in 2013 - 55, 2014 - 105, 2015 - 63
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08-19-2013, 03:40 PM
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#7
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Member
Join Date: Jun 2013
Posts: 95
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That makes sense! Thanks for the replies.
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08-20-2013, 07:56 PM
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#8
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Senior Member
Join Date: Sep 2010
Posts: 2,219
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My Flagstaff has two grey tanks and one handle. They appear to simply be plumbed together and keep even levels.
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2011 Flagstaff 831FKBSS
2010 F250 4X4 5.4L 3.73 LS
EQUALIZER E4 1200/12000
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08-20-2013, 09:07 PM
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#9
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Senior Member
Join Date: Apr 2008
Posts: 126
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My '09 Rockwood 2701SS has 2 gray tanks and 1 Black tank with 2 dump valves, one for gray and one for black. The two gray tanks cross feed and I love the setup.
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2009 Rockwood 2701SS
2008 Tundra Crewmax 5.7
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08-20-2013, 09:13 PM
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#10
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Member
Join Date: Jun 2013
Posts: 95
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I guess I could still a hose in the kitchen sink. If the "grey" tank starts to fill up and not the "galley", then it means I only have one tank.
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09-12-2013, 12:24 AM
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#11
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Junior Member
Join Date: Sep 2013
Posts: 3
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I have a 2008 8240SS 5th wheel. I have the same setup as you. There is another valve for the galley tank at the back of my trailer. The gray and black are at the front. The galley tank is just for the kitchen sink. I actually had a very small sticker on the side right at the bottom of the trailer body that said galley tank. I got a "Y" connector and hooked the hose from the gray/black drain to the galley one and dump them all at the same time when connected in a park. Just look all over under the trailer for an additional valve.
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09-12-2013, 08:32 AM
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#12
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L and F Martinez
Join Date: Jun 2012
Location: Virginia Beach, VA
Posts: 6
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I have a 2013 Rockwood 8280 Ultralite FW. The advertisments for the ultra lites is missleading stating that it has a 76 Gal grey water tank, when in fact you have two grey water tanks 38 galions each. One is called the galley tank which holds the dish water and the other is just a grey water tank that holds the bathroom water (shower and sink). The galley tank dump valve is about a foot behind the rear wheel of the trailer and difficult to get to when the slide is out. You need to get on your knees crawl under the slide to open the galley tank valve. The black water and grey tank dump valves are forward of the slide and easy to reach. I ordered a 3" dump valve with a 72 inch remote cable operated handle that I am going to mount near the rear stablizer jacks. That should eliminate the hassel of emptying the galley tank when the slide is out. For sewer hookup I use 3 rino flex hoses with Y connection. Hope this helps anyone with two grey water tanks. Larry
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