Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-21-2014, 06:19 PM   #1
Weekend Camper
 
Join Date: May 2013
Posts: 99
Dual Grey Water Tanks

Hey Folks! This is a question to which I think I already know the answer...but it never hurts to double check. We have two 40-gallon grey water holding tanks - one for the galley and one for the bathroom (shower & sink only, of course). They have 2 different dump valves. My question is - is there any chance that if one fills up it would overflow into the other? My hubby and my son both shower in the RV, and even though they take Navy showers, it always fills up significantly faster than the galley tank. Since we have to pull separate levers to dump them, I'm assuming there is no connection between them. But again - thought it wouldn't hurt to ask. Sure would be a nice safety feature!

Don't get me wrong - I'm not complaining. We went from a 12 gallon grey tank to 80 gallons. We're seriously loving this new trailer!! Just want to keep an eye on the tanks and not have back-flow accidents.

Thanks for the advice!
Edge2 is offline   Reply With Quote
Old 01-21-2014, 06:40 PM   #2
Full Time Camper
 
salda01's Avatar
 
Join Date: Sep 2007
Location: SE Wi.
Posts: 704
You can if both tanks are connected to 1 drain pipe. Get one of these

http://www.campingworld.com/shopping...on-valve/27868

and open both the valves of both tanks and water will flow between them
__________________
http://i299.photobucket.com/albums/m...1/rally5-1.jpg

'07 F250 Diesel Crew Cab 4x4

'08 CF30QB

Reese Signature Slider 18k Hitch
salda01 is offline   Reply With Quote
Old 01-29-2014, 10:46 AM   #3
Full Time Camper
 
r2millers's Avatar
 
Join Date: May 2011
Location: So. Cal.
Posts: 576
We also have twin tanks and salda is correct. A simple means to use all of your tank space. Just be sure to close both of these valves before emptying the black tank. Not a good thing to forget.
__________________

Bob and Better Half

2007 F-250 PSD, SW, CC, LB, 2WD
2006 TF32SS Cross Terrain Toy Hauler (sold)
Reese 16k slider
r2millers is offline   Reply With Quote
Old 01-29-2014, 02:41 PM   #4
Full Time Camper
 
Join Date: Jul 2013
Location: DFW, TexUS
Posts: 1,032
ewwwww - forgetting the valve ?!?

but 'sharing' the tanks like that really helps when no sewer hookups !!!!
__________________
johnboytoo is offline   Reply With Quote
Old 04-08-2014, 10:46 AM   #5
Weekend Camper
 
Join Date: May 2013
Posts: 99
Thanks for the responses. This sounds like a simple, economical solution! So do leave this new valve CLOSED and then leave both gray water tanks OPEN? Just wondering how it works. We'll look into it. Thanks again!
Edge2 is offline   Reply With Quote
Old 04-08-2014, 12:01 PM   #6
Full Time Camper
 
Join Date: Jul 2013
Location: DFW, TexUS
Posts: 1,032
Egg-xactly !

the 'new' vavle is closed and your two regular grey tanks valves are open and since water seeks it's own level the full tank will 'back up' into the empty grey tank...

oh, I even got one of these to make it easier to reach that bottom valve and SEE the flow:
http://www.campingworld.com/shopping...net-lugs/22172
or
http://www.campingworld.com/shopping...net-lugs/22170


again though, close grey tanks before opening black tank
__________________
johnboytoo is offline   Reply With Quote
Old 04-08-2014, 04:23 PM   #7
Weekend Camper
 
Join Date: May 2013
Posts: 99
Perfect! Thanks so much, and happy camping!
Edge2 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Crossroads RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 10:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×