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Old 07-12-2019, 10:38 PM   #1
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Location: Cypress, TX
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Black tank pull takes two hands and full body weight to open

2012 Keystone Avalanche,
The pull handle for my black tank is extremely hard to pull to open the valve to dump. I've tried dripping oil onto the cable to see if it may lubricate whatever is sticking, didn't work. Any suggestions would be greatly appreciated.
Tim Lerchbacker

Tim & Leesa Lerchbacker
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Old 07-13-2019, 09:20 AM   #2
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Years ago when my pull handle was very hard to pull i tried to spray a lube down the cable. Might have helped a tad, but was still a bugger. So crawled under and removed the cover for access to the attaching point to the valve and straighten out the cable. Found it was easy to operate, so ran the cable a differnt direction, changed the loop the factory installed to run around, and then reattached. Fixed the hard pull. You might have a different issue? Valve could be sticky?

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Old 07-17-2019, 09:06 PM   #3
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First, welcome to the forum.
And if it is hard to pull, getting worse, now is the time to tackle fixing it BEFORE it breaks/stops working with the tank full....

I am not familiar with the Avalanche, so next is generic...
Gonna take some investigating on your part to locate the black tank and figure out where the valve actually is. If you aren't using the trailer for a while, after locating and figuring out how to access it, take it out cable and all and see if it can be rehabbed while out. Better yet, take it out, get a replacement, and be done with it.
Again, you know its getting hard to work, you can bet it will get stuck/break with the tank full--what a mess that can be.
Good luck.
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Old 07-18-2019, 06:51 AM   #4
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What Joe ^^^^ said. Buy a replacement cable and sheath. About $25 or so. Buy the longer one if you don't know the length, they can simply be cut to fit when you get it. PRE-LUBE the new cable with a heavy spray lube. NOT WD40. This existing cable will leave you in a lurch....
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Old 07-22-2019, 05:40 PM   #5
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Hi!! I had this same issue. My best friend fixed it for me and he said it was very easy once he found the gate valve location. Here is a link to help you fix the problem.

Hope this helps!! I know how frustrating this can be!!
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Old 07-22-2019, 11:00 PM   #6
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I had same problem on my MS. I bought a new valve and replaced the old cable operated one. I installed the new one so I could reach it without a cable. It slides easily now. I was fortunate that the valve is located so I could do this.

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black water tank, dumping, open, valve

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