Thread Tools Display Modes
Old 07-11-2019, 03:00 PM   #1
Join Date: Jun 2019
Location: SE Washington State
Posts: 2
Fresh Water Issues with Geo Pro 19 FBS

Hello folks, I see that this is probably the second most popular line of questions associated with Rockwood trailers. I am attaching a picture of the three valves on our 19FBS and since I have tried several different configurations, I am not sure what the correct configuration of the valves is for using Fresh Water and NOT FILLING THE FRESH WATER tank at the same time. Any help is appreciated. With the valves in this configuration (See Photo), City water supply fills the Fresh Water Tank. I understand that I probably also have a stuck backflow valve as well, but I need to know the correct position of these three valves for use on a City Water supply then I can correct the backflow valve issue separately. Sincerely, Dnerver
Attached Thumbnails
Click image for larger version

Name:	Photo of Water Line Valves.jpg
Views:	102
Size:	273.2 KB
ID:	209602  

dnerver is offline   Reply With Quote
Old 07-11-2019, 03:10 PM   #2
Site Team
bikendan's Avatar
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 19,262
Someone with a GeoPro/EPro will have answer because most TTs have a separate FW tank fill, from the city water connection.

Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH
bikendan is offline   Reply With Quote
Old 07-11-2019, 10:16 PM   #3
Senior Member
Join Date: Jun 2012
Posts: 10,226
This diagram may help you.Your WH bypass valves (#1 and #2) are two 3-way valves like options 3a/3b on page 2 of the diagram.

Your FW tank/anti-freeze valve (#3) appears to be a 3-way valve, but I don't know why you have a tee with another blue line at the bottom. Do you know where that line goes?
Attached Files
File Type: pdf RV Plumbing pic.pdf (130.0 KB, 36 views)
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
rockfordroo is offline   Reply With Quote
Old 07-12-2019, 10:28 AM   #4
Senior Member
Join Date: May 2019
Posts: 106
If I had to guess, you probably have a hose connection outside that says "antifreeze" or "Winterization"?

If so, valve #3 switches between the antifreeze connection outside (for winterization purposes) and the fresh water tank pump suction line. If this is the case that valve is currently in the incorrect position and is set to draw in antifreeze instead of pulling water from the fresh water tank, this is assuming that the upper tube goes to the outside antifreeze port. If it appears that the upper tube routes to the fresh water tank then it's OK, but my "guess" is that it's still in the winterization position.

Vales # 1 & 2 are 3-way valves for bypassing the water heater during winterization, It appears that valve #1 is in the correct position, but valve #2 is in the bypass position and needs to be changed as well.

A good way to think about it whether 2-way or 3-way valves is that the handle typically points in the direction of water flow. So on a 2-way valve if the handle is parallel with the pipe it's open, perpendicular then it's closed. On a 3-way the valve handle is parallel with the flow path and closed to the other side, but you have to know the direction of flow to apply this principal.

What's throwing me a little is where does the blue pex line at the pump suction tee that's heading toward us in the picture go to?

If you're trying to pull out of your FW tank, try changing the positions of valves #2 & 3 and see what that does for you. Make sure you have enough water in the tank for the pump to pull, I know on our Mini Lite if I only have one LED lit up on the control panel the pump will sometimes cavitate due to not enough water in the tank......

Just went back and read a little closer, if the city water connection is filling the FW tank that sounds like a stuck check valve to me?
2020 Rockwood Mini Lite 2109S
2017 GMC 2500HD Denali 6.6L
01tundra is offline   Reply With Quote

fresh water, geo pro, water

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


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:40 AM.