Replacing black water cable valve

Its the same valve/as the straight pull just with a outer piece that comes apart with 4 screws then unscrew the cable piece off reverse the process

its not the valve
its the LABOR

get one of these and put it on the end where you attach the hose





http://www.amazon.com/Valterra-T58-Twist-On-Waste-Valve/dp/B000BGHYJS?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00

camping world has them almost the same price in the online listings

$400? Don't go there for anything again.

I produced parts for a snack food company and used vegetable oil on them to prevent rust. Over time the spare parts would stick together so tightly that they were extremely difficult to pry apart. I would quit using vegetable oil, it might help in the short term but cause problems later.

MR WIZARD, TWIST ON VALVE IS THE RIGHT ANSWER.

I have had one for 3 years..

I changed one on a previous trailer and I want to say it was a bear. On this trailer I had to cut an opening under the valve location. Getting the exact location was not easy. Removing the old valve was relatively painless but getting the pipes spread apart to install the new valve to get the seals to set right was extremely difficult. I had to redo the install three times before it didn't leak (i just filled the tank with water to test). I actually used the old bolts and nuts to spread the pipes far enough to slip it in place. I sewed the opening shut with wire ties. Hopefully, your install won't be as involved.

I replaced both the black and gray valves. No problem. Unscrew screws take out and insert new ones.

I think it took me less than an hour and that included bleaching the heck and flushing out the black tank. I just didn't want to deal with ANY type of sewage or smell while I was working on it! :W

Pick up the valve at any camping store or rv dealership parts store.

There was a time that there were 2 types. Bristol and Valterra. So be sure you pick up the correct one for your RV.

Also on mine there was a very small arrow molded on the valve itself. It is meant to tell you what direction the water flows so you put the valve in correctly. I didn't see that at first so that less than an hour installation 'included' putting one in and out twice so the arrow was pointing in the right direction! :B

i've done the valve replacemnet on other RV's where its at the end of the pipe at the edge of the RV

BUT a cable valve that is on ONE side of a Y so that black and gray are both, remote reach , is a really big PITA to try and replace

it get less simple and more complicated with each new RV that comes along
really bad when the valves are covered inside the belly of the TT

just saying replace it, its only an HOUR, is well..NOT so simple any more

Thanks for the information folks.

I'll sleep on it some more. I usually beat things around for a while before I decide to jump in.

If it seeps, then there is debris keeping the valve from fully closing. ANY type lube or oil will NOT fix that problem. People that state it is an EASY job to access and replace a CABLE driven valve WITH an underbelly have no clue as to what it really takes. The Cable driven valves function NOTHING like a standard pull rod valve. AND, they are mounted a lot different and are really a PITA to work on especially with an underbelly that has NO access covers. Very few OEM's install access covers for the tank valves. As to an "arrow" pointing which way?????? In 37 years whether it was Valterra or Bristol, I have NEVER seen an arrow and if you REALLY understand the design and how the flanges/seals are utilized, you would know that the valves have no front or back. 4 hours is not unrealistic depending on what is involved to access the system and correctly dropping the underbelly and reattaching the underbelly. Doug

I agree with Doug. Mine leaked and unfortunately my black tank cracked so when I removed black tank to repair I realized the only problem with valve was that the gaskets needed cleaning. (Another reason to always keep some water in your tank as it will not allow the debris to dry on gaskets/seals)

And like he said, the biggest problem is getting access to remove and clean the valve.

A job like that is all labor. If you can do it yourself you will save a lot of money, just be prepared for some aggravation.

Good luck!