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ParkCountry's avatar
ParkCountry
Explorer II
Sep 18, 2016

Best pay attention to your Gray Tank Dump Valve T-Handle

We just returned from THE best RV trip ever to Oregon. However, a problem 4 days into the trip threatened to put a serious dent in our plans...

Just before leaving Ainsworth State Park in the Columbia River Gorge, I went to dump the tanks and, lo and behold, I fell backwards when the Gray Tank T-Handle came out! A close inspection revealed that the end of the handle is threaded (female). I stuck it back in the 3/8" diameter hole and could feel the male end in there, but it was impossible to rethread these 2 together with no visual contact. NOW WHAT? I called local mobile RV repairs and they were backed up anywhere from 2 to 9 weeks! I called the local Camping World store in Wood Village (just east of Portland) and, of course, this time of year they are also backed up. I made the decision to continue to our next campground at Ft. Stevens State Park just outside of Astoria.

The Gray Tank is enclosed within another shell, through which the T-Handle passes through, which insulates the tank in cold weather. This hole is very tiny and you can't see into it, even with a flashlight, much less with the T-Handle in it. I made one last desperate attempt to not only "find" the male end, but to somehow get both ends threaded together by "feel" only. SUCCESS! How lucky! If that failed, I was going to drill a bigger hole in the tank enclosure until I could actually see the male end and work with it. Let this be a lesson to all that each time you dump your Gray Tank, be sure to turn it Clockwise to verify it is not coming unthreaded, with disastrous results!

8 Replies

  • Actually, that "should" be a relatively easy fix, at least on a trailer. You would have to lower the underbelly, and figure out which cable is causing the problem. Trace it back to the valve on the tank, the cable is attached to the valve by a set screw. First you could try pushing the valve to the closed position to see if enough of the cable comes out. If not, loosen the set screw, then push the cable to the closed position. Also, there are 2 nuts on the cable near the handle, one on the outside near the pull handle, and one on the other side of the wall, loosen the 2 nuts, and the cable & housing should be able to be pulled out.
  • Hi all... thanks for the information. I have no idea if mine are threaded or not. On the subject of dumping. Is their a any easy way to lube the cables? Jim 20th
  • Although mine are not threaded, I can twirl them all day long and nothing will happen, I still have the habit of turning them at least one full circle before pulling. My first camper had a threaded T-pull, and it would unscrew. I got into a habit of just tightening it every time I pull or pushed it. Once a habit, it stays part of your routine forever.
  • Righty tighty...lefty loosey

    Heads up....some do swivel. You can set there and tighten all day with no effect.

    Ron
  • Wow, that's good to know! sometimes I turn that handle, I thought it was on a swivel, but it's actually unthreading huh? Which way to turn for "tighten"?
  • j-d's avatar
    j-d
    Explorer II
    Great Advice!

    And, Glad you didn't get stuck!