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Old 09-11-2014, 09:01 AM   #11
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Join Date: Oct 2011
Location: NEPA
Posts: 1,447
My 2015 XLR has that extra button on the panel, too, but I don't have a second gray tank. I'm guessing FR just bought a boat load of the same panels and used them in all the XLRs, even if that 5th button wasn't needed. So don't assume you have a second gray tank just because you have an extra gray tank indicator button...

2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)27 ('17) 20
2016 Ford Fusion Titanium (gulping gas again, camping support vehicle)
2014 Harley Davidson FLHX (XLR cargo)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)
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Old 09-11-2014, 09:45 PM   #12
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Join Date: Jul 2014
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yea, only one gray tank here, but I do have a button for a 2nd gray tank. From what I have seen, the only place for the 2nd gray tank is taken up by the fuel tank.

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Old 09-15-2014, 07:05 AM   #13
Join Date: Aug 2014
Location: Michigan
Posts: 76

I have two dump handles for my gray tanks and one for my black on my XLS. The 57 is divided into two tanks. Go figure, its a mix and match tinker toy set. My guess is it takes two tanks to add to the 57 on the 24/27/29 and you have two gray dump valves when you do have both. I still have a spot for the fuel tank but my 29 is longer of course. The brocure says the 30 has a 32gal gray and a 54gal black (verses our 32), very different from the 24/27/29. Only Forest River really knows and they live in Oz and seem unreachable. Perhaps the extra 17 is my 2nd gray dump which you don't have?

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