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wcw5509b's avatar
wcw5509b
Explorer
Jun 10, 2015

how many gray water tanks in Montana 3400rl?

We just bought 2011 Montana 3400rl. We notice there are two gray water tanks showing on the inside monitoring panel, but there's only one dump pull. One tank is completely full and pulling the dump handle does not drain it. We have crawled around under the coach and can find no other spade valves handles visible. Can anyone enlighten us?

8 Replies

  • old guy wrote:
    I have a montana but not your model. the gallery tank pull is under the rear slide above the tire.


    X2 Ours is not the same model, but almost... Our second gray handle is under the slide next to the rear tire.
  • We had a 2008 3400RL. That second gray tank handle isn't obvious but it is there. Actually on our 2014 Montana they stuck it in almost the same inconvenient place.
  • No need to crawl around, I have the same model and the handle for the kitchen sink is in the drivers side wheel wheel.
  • I have a older Keystone Challenger with 2 gray tanks. The one is the galley for the kitchen sink. The pull handle is just back of the rear tires at the rear of my main slideout. Look in that area for the second handle.
  • The Montanas have a two grey water tanks, one for the shower and bathroom vanity, and likely for the clothes washer if you have one. The other is called the galley tank and is for the kitchen. The pull handle for the galley tank is probably just in front of the wheels on the street side. Some models have the handle between the wheels. It is there somewhere.

    Since you are now a Montana owner, go over and join the Montana Owners Club (MOC) forum for all things Montana.
  • I have a montana but not your model. the gallery tank pull is under the rear slide above the tire.