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  1. #11
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    Do not use WD-40. When the carrier evaporates you're left with a sticky goo.
    2019 F-250 Supercab
    2017 Imagine 2650RK

  2. #12
    Big Traveler Keebler's Avatar
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    I am a fan of the dry lube:
    https://www.amazon.com/WD-40-Special...46&sr=8-1&th=1

    That said, there are other causes that result in the valve handle being hard to pull; such as debris at the valve and improperly routed cables. I had both grey tanks lock up and the tech told me the cause was that the bend radius on the cable was exceeded. Both of mine have been replaced last season and have been ok since.

    Also, consider putting some loc-tite on the screw that attaches the handle to the rod. Several here (including me) have lost handles on the road. Cheap part but a PAIN to replace (most handles online have a female thread and screw directly onto the male rod. These use a separate screw that goes into the female rod. OK, that sounds dirty, but isn't).
    Last edited by Keebler; 06-11-2019 at 08:08 AM.
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  3. #13
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    Quote Originally Posted by jw^2 family View Post
    The rods that connect the cables to the handles might be a different matter. Over the past winter both of our grey tank dump valves became stuck shut. It took a good bit of penetrating lubricant and some twisting with a pair of Vice-Grip pliers to break the rods loose from their housings so that the cables would operate. I'll be keeping the rods lubricated from now on to avoid repeating this problem.
    Mine haven't ever gotten stuck, but they have gotten somewhat stiff from time to time. Now I just lube the rods up with silicone spray a couple of times a year and that's taken care of the problem.
    2018 Imagine 2600RB
    2019 Chevy Silverado 2500HD 4x4 LT Crew Cab, Vortec 6L V8, 4.10 Rear Axle
    Equal-i-zer 1,200/12,000# Hitch

  4. #14
    Setting Up Camp
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    Thanks all.
    Pulled the plug on the 2600rb. Maiden voyage is today. I have silicone to spray.
    Couldn't really tell but they don't look like the Valterra handles I'm used to seeing.

  5. #15
    Site Sponsor jw^2 family's Avatar
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    Quote Originally Posted by Crusin' View Post
    Thanks all.
    Pulled the plug on the 2600rb. Maiden voyage is today. I have silicone to spray.
    Couldn't really tell but they don't look like the Valterra handles I'm used to seeing.
    I believe they are LaSalle Bristol dump valves.
    Joe & Joy + children
    2018 Imagine 2800BH
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  6. #16
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    The "gm" suffix is for GlassMaster brand. These have a different lubrication than prior supplier to LaSalle. Paying attention to bend radius is very important. I replaced all (3) of my cables; its not as difficult as I expected.

    Gray dump valve: GD 310115, 36" cable: LaSalle Bristol: 66n11ab36gm
    Black dump valve: GD 310109, 36" cable: LaSalle Bristol: 34466nab36gm
    2022 GD 2970RL (soon to be "released")
    2019 F350 Platinum, Shorter bed, Diesel, SRW, 3.55 rear, 55gal tank!
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  7. #17
    Site Sponsor Skiddy's Avatar
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    The black and one of the grey tank handles on the 2600RB are behind the street side wheels, they do pick up lots of road gunk. I suggest you do lube them with either silicon or dry lube, and as noted above, work them open and closed after a spray of lube. (2150RB has the same arrangement)
    Judy & Larry
    Ty and Ali the St Bernard drool machines
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    2019 Imagine 2150RB - lovingly christened “IM-A-GENE” towed by Dusty via Andersen 3350.
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  8. #18
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    Quote Originally Posted by Hwktlg8 View Post
    With 2 rvs overs 7 yrs in the midwest heat, humidity, cold and snow I have always used spray silicone on the rods every time I dump working the rods open and closed several times after spraying the shafts and have never had any issue.
    Just have a question on what you said you do to your valves at each dump. Do you have to drop your coroplast each time or are your valves exposed at the tanks? thanks.
    2021 Imagine 2910BH
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  9. #19
    Big Traveler Keebler's Avatar
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    Quote Originally Posted by Maddgopher View Post
    Just have a question on what you said you do to your valves at each dump. Do you have to drop your coroplast each time or are your valves exposed at the tanks? thanks.
    I read that as he is lubing the rod at the handle (not the valve itself); no need to drop chloroplast.
    2017 Ford F350 Platinum 6.7L PowerStroke DRW
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  10. #20
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    Quote Originally Posted by Keebler View Post
    I read that as he is lubing the rod at the handle (not the valve itself); no need to drop chloroplast.
    Oh okay. I was wondering if he might have cut the coroplast to allow enough room to access the actual valves. Thanks.
    2021 Imagine 2910BH
    2020 Chevy 2500 HD Crew, 6.6L Duramax, Z71, 4X4

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