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Old 02-23-2018, 10:47 AM   #1
Junior Member
Join Date: Sep 2010
Posts: 5
grey tank sensors

I am having problems with the sensors in my grey tanks. The tanks are empty but of course they show they are either 1/3 or 2/3 full. Have tried camco products that don't seen to help.
Has any one found a product that works?

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Old 02-23-2018, 11:17 AM   #2
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Workhorse Chassis Owner
Join Date: Jun 2003
Location: Palisade CO
Posts: 3,588
Anything that cleans the tank walls might help. However I tried everything people recommended and nothing worked. Some solutions may work for people that use their RVs for vacation and weekends only but none worked for me as a full timer.
I gave up and just marked the calendar when I dumped and dumped again ten days later. I left the gray tank open until a couple of days before I dumped so the gray water dumped after the black could flush the hose.

Note that dirty sensors are not the problem - I had non contact sensors on the outside of the tanks and still got faulty readings when the tank walls crudded up enough.

Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
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Old 02-23-2018, 01:25 PM   #3
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Location: Columbus, MS
Posts: 39,767
Hi ! Welcome to IRV2! We're sure glad you joined the gang!

That's an age-old problem that nobody seems to be able to figure out! Keep her between the ditches!

Good luck, happy trails, and God bless!
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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Old 02-24-2018, 12:58 AM   #4
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Join Date: Oct 2014
Location: Alberta
Posts: 447
I had the same issue with my gray water tank sensors not clearing. I installed the SeeLeveL II tank monitor and it works great, it also displays in percent instead of 1/3rds. The sensor sticks on to the outside of the tank and reads through the tank. Nothing to foul up.
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grey tank, tank

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