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Old 08-23-2017, 03:00 PM   #1
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Probes for thick-walled holding tanks?

I'm looking for probes that will work on a couple holding tanks that have 3/8" thick walls..

A friend of mine had ProTanks whip up some custom holding tanks for his 73 Tradewind, and the walls of the tanks are too thick to use the Horst probes he ordered..

I tested the Horst probes on a 1/2" thick piece of plastic to see if they would hold, but as I started tightening up the nuts, the probe started backing itself out of the hole, which is what I assumed would happen since the rubber washer on the probe couldn't flare out on the inside of the tank.

Soooo, does anyone have any recommendations for another brand/style of probe I should look into? Possibly some that can be screwed directly into the side of the tank?

Any input would be super helpful. Thanks so much!
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Old 08-23-2017, 04:34 PM   #2
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I don't know haw far you are into your install Horst probe install so this may be a moot point, but have you looked at the Seelevel system.
https://www.garnetinstruments.com/pr...onitor-system/

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Old 08-23-2017, 05:22 PM   #3
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Quote:
Originally Posted by mtnroots View Post
I'm looking for probes that will work on a couple holding tanks that have 3/8" thick walls..

I tested the Horst probes on a 1/2" thick piece of plastic to see if they would hold, but as I started tightening up the nuts, the probe started backing itself out of the hole, which is what I assumed would happen since the rubber washer on the probe couldn't flare out on the inside of the tank.

Soooo, does anyone have any recommendations for another brand/style of probe I should look into? Possibly some that can be screwed directly into the side of the tank?

Any input would be super helpful. Thanks so much!
No need for new probes. 3/8" walls are thicker than they need to be, so it should be possible to countersink the holes for the probes (drill partway through at a larger diameter) to thin out the walls to a thickness that the probes can handle.
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Old 08-23-2017, 05:29 PM   #4
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Use s drill press and a forstner bit to get a flat countersink area and depth control...or risk ruining tank!
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