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Old 16-08-2015, 10:21   #1
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Tank Tender

I just purchased a Sailboat with a Tank Tender system 4 tanks. The system does not seem to hold pressure. Common causes? I know one of the tubes is bad. Should I replace all? Thanks
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Old 16-08-2015, 14:35   #2
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Re: Tank Tender

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Originally Posted by Wolverine6300 View Post
I just purchased a Sailboat with a Tank Tender system 4 tanks. The system does not seem to hold pressure. Common causes? I know one of the tubes is bad. Should I replace all? Thanks
I've had a lot of hose push in fittings fail. I am going to change them all now. Apparently they have a newer improved fitting, but any pneumatic fitting for 1/8" hose should be ok. Thread is 10-32 UNF
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Old 16-08-2015, 20:20   #3
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Re: Tank Tender

Are you holding the button down and pumping the plunger? You need to hold the button down, pump the plunger simultaneously, read the dial, then release the button.
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Old 17-08-2015, 03:24   #4
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Re: Tank Tender

We also have a Tank Tender, but the 10 tank model. We only use 6 of them.

When we bought our boat, only one or two tanks would read properly. Some read zero, some read full scale, and the rest leaked so badly you could not tell what the reading was. All of this was caused by broken, blocked, or leaking tubes.

I replaced all tubing on the boat. Two tanks still would not read properly and I found the vertical stiff tubing that is inside the tank was broken. I replaced all of these and it solved the issue.

A few months later, one tank stopped reading properly. I traced it to a kink in the tube where I did a poor job during the install. Rather than rerun it, I cut it and repaired with a double compression fitting. I have had no further problems.

I bought several fittings and olives for my tool box before leaving the US in case I have any more issues.

One suggestion that I could offer - to allow for future repairs, when you are running your new tubing put in a coil of extra tubing somewhere along the line. One loop will give you a foot or so of slack that you may someday need to allow you to repair a broken tube. In my case, I had a little out of the way spot after the tube had been snaked from the nav station and behind the freezer to the area under the sole. This was where I coiled up my extra loops of the tubing and ty-rapped them neatly together. Saved me from re-running the entire line and allowed me to put in a double compression fitting.

Cheers!

Steve
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