Forum Discussion

trailernovice's avatar
Feb 01, 2016

how can I find info on the capacity of each grey tank?

Our new trailer has two grey tanks...one for the shower/the other for the kitchen sink...has two grey outlets--the black outlet is linked into one of the grey outlets, and the other grey outlet is stand-alone...

here's the issue...I see the TOTAL grey capacity in the specs, but nothing about how this total is divided between the two tanks...ex. does it hold 10 on the 'galley' tank and 42 on the shower tank? vice versa? an even split between the two?

curious because I don't want a repeat of the 'water is backing up into the bathtub' thing

19 Replies

  • Houston Remodeler wrote:
    The size of every grey tank is pretty constant;

    Just small enough to slosh grey water into the shower pan as you drive down the road.


    Hmmm. That is an interesting comment. I've towed many hundreds of miles ( probably more like several thousand miles ) with varying amounts of water in my gray tank, and never had that happen.
  • The size of every grey tank is pretty constant;

    Just small enough to slosh grey water into the shower pan as you drive down the road.
  • Well I was told at the dealer and in all the brochures that I had read on our trailer that the grey water was 23 gallons.

    I was under the trailer doing some wire clean up and just checking things.

    Then I noticed molded into the bottom of the plastic tank 32 Gallon!
  • bdpreece wrote:
    ....snip......

    You can get pretty close by turning your hose on full and timing how long it takes to fill a 5 gallon bucket then with empty tanks time how long it takes to fill until the water starts to come up in the shower drain or the sink.


    I vote for this method !! :) It doesn't get much easier than this.;)
  • Give them a call:
    Customer Service Hours

    Monday - Thursday: 8:00 A.M. - 5:00 P.M.
    Friday: 8:00 A.M. - 3:00 P.M.
    Customer Service: 855-226-7496
    Email: warranty@crossroadsrv.com
  • I would probably contact the manufacture first but if that did not work;
    You can get pretty close by turning your hose on full and timing how long it takes to fill a 5 gallon bucket then with empty tanks time how long it takes to fill until the water starts to come up in the shower drain or the sink.
  • donn? that's too much of a common-sense approach for me to grasp....can't everything just be googled?
  • Fill them and using a 5 gallon bucket drain each one recording the number of buckets full you drain out.