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Old 05-15-2019, 05:23 AM   #1
Fishsizzle
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Black tank Cable valve

Soooooo I have had the 5th wheel out 2 times since I got it back from the dealer for warranty work.

First time the black tank was open. Yeah! Poo bath! I chalked it up to someone forgot to close it.

Well this trip itís not closing.

Do the cables break? They were under it a lot for repairs maybe itís been disconnected?

Anyway to tell without pulling the belly off (doubt it)?
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Old 05-15-2019, 06:13 AM   #2
chuckster57
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Does the handle move easily? Itís not a cable, itís a single wire, but everyone calls them cables.

It could be kinked, but you will need to access it to see. Some givers have access through the back wall of the basement.
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Old 05-15-2019, 06:43 AM   #3
Fishsizzle
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Quote:
Originally Posted by chuckster57 View Post
Does the handle move easily? Itís not a cable, itís a single wire, but everyone calls them cables.

It could be kinked, but you will need to access it to see. Some givers have access through the back wall of the basement.
Yes, it moves freely like alway
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Old 05-15-2019, 06:47 AM   #4
JRTJH
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The holding tank valve "cable system" is a Bowden Cable. What that means is that it's a single wire run through either a "spring type" or "hollow cable type" structure. Look at the handlebar brake cable on your bicycle, the speed control cable on your lawn mower or the thumb actuated accelerator cable on your ATV. They all are "Bowden Cable" systems.

Usually they are a very reliable system, but pulling them too hard can break the plastic valve seat, installing them with a "kink in the cable" can make them difficult to operate and rust/corrosion will make them impossible to function. If the outer cable structure is not secured to the frame, the entire assembly moves, which makes opening the valve "impossible".

Take a look at your system, many don't have "cable slide valves" and yet they get blamed for "cable problems". Often, debris in the valve seat/seals, kinks in the cables or rust/dirt in the sliding part of the cable are the problem.
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Old 05-15-2019, 07:56 AM   #5
Fishsizzle
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Originally Posted by JRTJH View Post
The holding tank valve "cable system" is a Bowden Cable. What that means is that it's a single wire run through either a "spring type" or "hollow cable type" structure. Look at the handlebar brake cable on your bicycle, the speed control cable on your lawn mower or the thumb actuated accelerator cable on your ATV. They all are "Bowden Cable" systems.

Usually they are a very reliable system, but pulling them too hard can break the plastic valve seat, installing them with a "kink in the cable" can make them difficult to operate and rust/corrosion will make them impossible to function. If the outer cable structure is not secured to the frame, the entire assembly moves, which makes opening the valve "impossible".

Take a look at your system, many don't have "cable slide valves" and yet they get blamed for "cable problems". Often, debris in the valve seat/seals, kinks in the cables or rust/dirt in the sliding part of the cable are the problem.

Thanks! Iíll crawl in the basement tonight and see what I can. It worked fine up till getting out of the shop
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