Thread Tools Display Modes
Old 03-27-2013, 08:10 PM   #1
Junior Member
Join Date: Mar 2013
Location: Northern California
Posts: 2
Question can't drain fresh water

Hello All... We are first time 2007 Rockwood 2603 TT ownders and want to drain & then sanitize the fresh water tank. We followed all the directions re: stopcock, etc. But no luck. Former ownder says he just used it all up and dumped with grey water. Is this our only option? Is that blue tube which descends underneath possibly plugged?

Sign us "confused but grateful" and thanks for being here.

RockSee is offline   Reply With Quote
Old 03-27-2013, 08:25 PM   #2
Fulltime family RVer
ependydad's Avatar
Join Date: Nov 2011
Posts: 16,655
That's possibly your low point drain to the water system. The actual FW drain may be somewhere else....

But where?

2012 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is offline   Reply With Quote
Old 03-27-2013, 08:31 PM   #3
Senior Member
Fire Instructor's Avatar
Join Date: Jul 2010
Location: Upstate (Albany Area) NY
Posts: 772
Follow the plumbing that comes out of the bottom of the tank. Somewhere between the tank and the pump (usually only a very short distance) you will find the drain valve. If you open it and nothing comes out, then maybe you can check from underneath and maybe a mud wasp or other insect built a nest in the drain tube....
Fire Instructor

2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter
Fire Instructor is offline   Reply With Quote
Old 03-27-2013, 09:04 PM   #4
Senior Member
John McClain's Avatar
Join Date: Jan 2013
Location: Ventura
Posts: 166
Crawl under your unit and your drain tube/cockpit will probity come off the tank or tanks just inside the frame rail drivers side.
F-250 . stealth 3210 solar pannels, fantastic fans. and life line batteries
John McClain is offline   Reply With Quote
Old 06-25-2013, 11:44 AM   #5
Junior Member
Join Date: Jun 2013
Posts: 9
I having the same problem I have tried to drain my fresh tank according to rv dealer it's the one right below the fill it seemed to have pressure on it from the pump but after unscrewing cap got a little water but not much removed the caps on the lines below the sink a little came out when I opened the faucet but not much, thought possibly I was out of water so I filled the tank with caps removed and still no water drainage any help would be greatly appreciated.

Oh if it helps it is an 02 forest river cardinal

Thanks josh
Deshazo907 is offline   Reply With Quote
Old 06-25-2013, 12:57 PM   #6
Senior Member
MotocrossCamper's Avatar
Join Date: Nov 2010
Posts: 653
On a 02 or 07 I would look very closely for a valve that you have to turn about 6 to 12 inches from the fresh water tank. It is very possible on those years that its on the inside of the RV. It may not be that easy to access in some cases. I have seen some that require you to be a contortionist.
MotocrossCamper is offline   Reply With Quote
Old 06-25-2013, 02:01 PM   #7
Junior Member
Join Date: Jun 2013
Posts: 9
Ok, so I guess the next question I have is where should that tank roughly be located I have an enclosed under belly and the fills in back but pumps in the front
Deshazo907 is offline   Reply With Quote
Old 06-25-2013, 11:48 PM   #8
Site Team
bikendan's Avatar
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 14,443
your 2007's FW tank may be inside the trailer, in a cabinet.
our 2007's is.
there is a drain valve next to the internal FW tank and you pull up to drain.
the easiest thing to do is follow the external fill hose to the FW tank.
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH and Prodigy BC
bikendan is offline   Reply With Quote
Old 06-26-2013, 07:36 AM   #9
Junior Member
Join Date: Jun 2013
Posts: 9
Well I couldn't find a cabinet with the tank traced the hoses from inside to where they go under the floor didn't feel like ripping up any floral figured I'd just use the pump Nd pump it into the grey tanks and dump turn the pump on and low and behold it starts pumping water out the drain tube or at least I think it's the drain tube at least the tanks empty now
Thanks for the help


Deshazo907 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:47 PM.