Reply
 
Thread Tools Display Modes
Old 04-29-2018, 08:02 PM   #1
Junior Member
 
Join Date: Feb 2018
Posts: 8
2 Gray Water Tanks?

Just coming off of a great 1st trip in our FR Vibe Xtreme Lite 227RLS. Camped at an electric hook up site (no water / sewer). We were using our potable water tank, gray tanks, and black tank.
On our last day, about 10 mins after taking a shower, gray water started to back up in the shower (when wife was using the kitchen sink/drain).

Control panel showed:
Gray Tank #1: Full
Gray Tank #2: 1/2

TT has 3 gray water sources:
Shower
Kitchen Sink
Bathroom Sink

I assume that the shower and the kitchen sink share one tank and that the bathroom sink uses the other gray tank.
Unfortunately, FR manuals are very generic and are of no real help.
Does anyone have an idea why the two “hi volume” water sources (shower & dbl. kitchen sink) drain into one gray tank and the smaller volume source (small bathroom sink) drains into the other gray water tank?
Seems that it would make more sense to have the small bathroom sink and shower plumbed together to the same gray tank vs. two of the three highest drain water sources draining into the same gray tank.
Any thoughts or suggestions?
Much appreciated!
__________________

NEO noob is offline   Reply With Quote
Old 04-29-2018, 10:07 PM   #2
Senior Member
 
Join Date: Jul 2009
Location: Warsaw,NC
Posts: 7,184
You could install a valve on your sewer line and then when you have that problem again open up both grey water tanks and let them equalize.
__________________

spock123 is offline   Reply With Quote
Old 04-30-2018, 02:33 PM   #3
Member
 
ttocsmi's Avatar
 
Join Date: May 2013
Location: SE Michigan
Posts: 34
I had a similar email exchange with someone at FR last fall, and learned that it depends on your floorplan. But the dealers don't tell you how it's plumbed (probably because they don't know) when you buy the unit. Search around, there are a number of threads on this same topic.

I asked for drawings/schematics/etc for my unit - nope! I verified my layout by running a hose through each inside drain and observing which tank filled and which dump valve each was connected to.

On my 243BHS, the kitchen is on grey #1, the bathroom sink is on grey #2 (??!!??), and the the outside sink, toilet, & shower are on the black tank.
ttocsmi is offline   Reply With Quote
Old 04-30-2018, 02:51 PM   #4
Fulltime family RVer
 
ependydad's Avatar
 
Join Date: Nov 2011
Posts: 19,905
Quote:
Originally Posted by ttocsmi View Post
But the dealers don't tell you how it's plumbed (probably because they don't know) when you buy the unit. Search around, there are a number of threads on this same topic.

I asked for drawings/schematics/etc for my unit - nope! I verified my layout by running a hose through each inside drain and observing which tank filled and which dump valve each was connected to.
I found that my dealer told me how it SHOULD be plumbed, not necessarily how it was. I had to figure it out by running + dumping water like ttoscmi indicated.
__________________
2018 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 05-01-2018, 04:37 AM   #5
Junior Member
 
Join Date: Feb 2018
Posts: 8
Thanks for the information.
I’ll try running the different water sources to see which tank they drain into.
Kind of frustrating - the lack of resources available from the manufacturer or dealer.
Again, I appreciate the response!
NEO noob is offline   Reply With Quote
Old 05-01-2018, 05:01 AM   #6
Senior Member
 
Oaklevel's Avatar
 
Join Date: Sep 2012
Location: Virginia
Posts: 5,736
We do not have your make but our last 3 campers had the shower and bathroom sink on one grey tank and the kitchen sink was on the other.

At least they are not like the older campers that had only one tank for everything.


__________________

2005 Dodge 3500 Cummins
2017 Wildwood Lodge 4092 BFL
1966 Mustang GT
1986 Mustang SVO
Lillie Spoiled Rotten Boxer Mix
Oaklevel is offline   Reply With Quote
Old 05-01-2018, 12:06 PM   #7
Member
 
Join Date: Apr 2016
Location: East Ohio
Posts: 82
We have a Minilite 2506S with two gray tanks, one for the kitchen sink, and the other for bathroom and outside kitchen. There are two drains as well. If you have two drains, consider after they are full, drain one and check the sensors.
RFGTLG is offline   Reply With Quote
Old 05-01-2018, 12:55 PM   #8
Member
 
Gm Mike's Avatar
 
Join Date: Apr 2017
Location: East St Paul, Mb
Posts: 63
We have 2 grey water tanks as well. Bathroom sink and shower on 1 and galley on 2. Two separate dumps as well. Tank 1 will back up into shower if full and the bathroom sink is used. My greys are 35 gallons each and after awhile, you get the hang of it as to how much you can use or have to conserve in the case of no hook ups.
__________________
Mike & Fay
2013 Rockwood 8289 Diamond with 3.5" lift
2017 GMC 2500HD Duramax
Curt A20 c/w GM Puck system
2019 Nights Camped 75
Gm Mike is offline   Reply With Quote
Old 05-01-2018, 01:01 PM   #9
Senior Member
 
DouglasReid's Avatar
 
Join Date: Jun 2016
Location: Maurice, LA
Posts: 2,722
Quote:
Originally Posted by NEO noob View Post
Just coming off of a great 1st trip in our FR Vibe Xtreme Lite 227RLS. Camped at an electric hook up site (no water / sewer). We were using our potable water tank, gray tanks, and black tank.
On our last day, about 10 mins after taking a shower, gray water started to back up in the shower (when wife was using the kitchen sink/drain).

Control panel showed:
Gray Tank #1: Full
Gray Tank #2: 1/2

TT has 3 gray water sources:
Shower
Kitchen Sink
Bathroom Sink

I assume that the shower and the kitchen sink share one tank and that the bathroom sink uses the other gray tank.
Unfortunately, FR manuals are very generic and are of no real help.
Does anyone have an idea why the two “hi volume” water sources (shower & dbl. kitchen sink) drain into one gray tank and the smaller volume source (small bathroom sink) drains into the other gray water tank?
Seems that it would make more sense to have the small bathroom sink and shower plumbed together to the same gray tank vs. two of the three highest drain water sources draining into the same gray tank.
Any thoughts or suggestions?
Much appreciated!
We too have 2 grey tanks.

The shower and bathroom sink are on one. (they are literally 3' from one another)

The kitchen sink, which is in a different portion of the camper is the only thing that drains into the other grey tank

Don't think volume of water, think location of the drain.

Some campgrounds like you to drain grey water onto plants near camping site, many FORBID it.

For those that do you can purchase a drain cap for your sewer hookup that has a male hose connection with a screw on cap to allow you to hook up a water hose to drain onto the plants. (DO NOT use any hose that you use to get fresh water into the camper and DO NOT do this unless the campground permits it)

For those that permit it you can use the hose to keep your most used tank from backing up into the shower.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2008 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
DouglasReid is offline   Reply With Quote
Old 05-01-2018, 02:45 PM   #10
Senior Member
 
Join Date: Apr 2016
Location: Cedar Creek Lake, TX
Posts: 2,599
On mine there is a valve between the two grey tanks. Open to combine the tanks, close to keep separate.
__________________
Cedar Creek Lake, Texas
2019 Keystone Loredo 290SRL
2019 Ram 2500 4x4 Cummins crew cab
Andersen hitch
CedarCreekWoody is offline   Reply With Quote
Old 05-01-2018, 03:18 PM   #11
Junior Member
 
FredK's Avatar
 
Join Date: Mar 2018
Location: Oregon
Posts: 8
You can obtain Septic Dye Test Tablets for under $20 to use so you can find out which drains go to which grey water tanks. www.ToolExperts.com


On my 33' 5er, I just opened up my valves, one at a time and used Hot water to see where it went. I also found that the indicater lights are not always that accurate. Probably 75% accurate!
FredK is offline   Reply With Quote
Old 05-01-2018, 03:23 PM   #12
Senior Member
 
DouglasReid's Avatar
 
Join Date: Jun 2016
Location: Maurice, LA
Posts: 2,722
Quote:
Originally Posted by CedarCreekWoody View Post
On mine there is a valve between the two grey tanks. Open to combine the tanks, close to keep separate.
That would be very nice. We do not have such a valve.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2008 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
DouglasReid is offline   Reply With Quote
Old 05-01-2018, 03:58 PM   #13
Senior Member
 
Join Date: Jun 2012
Posts: 10,604
Quote:
Originally Posted by NEO noob View Post
Just coming off of a great 1st trip in our FR Vibe Xtreme Lite 227RLS. Camped at an electric hook up site (no water / sewer). We were using our potable water tank, gray tanks, and black tank.
On our last day, about 10 mins after taking a shower, gray water started to back up in the shower (when wife was using the kitchen sink/drain).

Control panel showed:
Gray Tank #1: Full
Gray Tank #2: 1/2

TT has 3 gray water sources:
Shower
Kitchen Sink
Bathroom Sink

I assume that the shower and the kitchen sink share one tank and that the bathroom sink uses the other gray tank.
Unfortunately, FR manuals are very generic and are of no real help.
Does anyone have an idea why the two “hi volume” water sources (shower & dbl. kitchen sink) drain into one gray tank and the smaller volume source (small bathroom sink) drains into the other gray water tank?
Seems that it would make more sense to have the small bathroom sink and shower plumbed together to the same gray tank vs. two of the three highest drain water sources draining into the same gray tank.
Any thoughts or suggestions?
Much appreciated!
To answer your question, it's just like real estate: Location, location, location. Looking at your floor plan, I'm guessing the black tank is directly below the toilet. That means they need a grey tank forward of the black for the kitchen sink and one aft of the black for the bathroom sink. Then they have to make a decision on which one to plumb the shower to. They will plumb it to whichever one is easiest for them. ( Based on your floor plan, I would have guessed the shower goes to the forward tank even if you hadn't already said so.) Unfortunately, they don't always consider the volume of water each input may contribute to the tank it's connected to. Sometimes they do, and use a larger tank for the one with more input, but again, there may not be room. The tanks have to be small enough to fit between the crossmembers of the frame.

As mentioned by others, depending on how the tank drains are routed, you MAY be able to plumb the two gray drains together and create a "single" tank. Usually the biggest obstacle is having an axle in the way, but I don't think that's an issue for you, as it looks like the tanks would all be forward of the axle.
__________________

__________________
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 online now   Reply With Quote
Reply

Tags
tank, water, water tank

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

Disclaimer:

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



All times are GMT -5. The time now is 10:40 PM.


×