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Old 03-25-2020, 09:19 AM   #1
Junior Member
National RV Owners Club
Ford Super Duty Owner
Join Date: Mar 2020
Posts: 6
99 Dolphin Water Tank

this rig I just purchased isn't laid out like my last one? The lady I bought it from didn't know squat about it.
Will need to find a good manual for it. Meanwhile, this rig has been sitting for about a year; am trying to sanitize the fresh water tank. Problem is, I can't find the plug to drain the tank.
I did look under the bed where the tank is and found 2 valves. I am attaching a picture for you to see. Maybe one of these is the release valve?Click image for larger version

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Old 03-25-2020, 10:39 AM   #2
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Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 30,495
White valve is the fresh tank drain .
Without tracing the rest of the line to the metal valve ; best guess is a low point drain.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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Old 03-26-2020, 12:26 AM   #3
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National RV Owners Club
Ford Super Duty Owner
Join Date: Mar 2020
Posts: 6
99 Dolphin water tank

I took the chance on the white lever. And sure enough, BINGO.
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dolphin, tank, water

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