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Old 05-25-2014, 05:28 PM   #1
CalamonTin's Avatar
2008 30' Classic
Santa Rosa Beach , Florida
Join Date: Sep 2011
Posts: 20
Images: 5
Grey water indicator is yellow even tho drain is open

2008, 30' Classic Limited. Full timer in Florida. After emptying the grey water tank the indicator is green. Then after a couple of hours it suddenly turns yellow. No shower, no heavy use of water. This has been happening more and more of late. I do cook frequently but am diligent about not putting garbage or grease in the sink. My Micro Pulse is only two years old. I have never experienced an overflow.

What might anyone suggest?

Pete Gill
2008 30' Classic Limited
2008 F-250 6.4L Super Duty Exended Cab
ProPride 3P, 1400 hitch
1974 RHD TR-6
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Old 05-25-2014, 07:20 PM   #2
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2013 25' Flying Cloud
Edisto Island , South Carolina
Join Date: Dec 2012
Posts: 123
I was having a similar problem, except mine was showing full when the tank was actually empty. I tried a recalibration of just the one tank (be careful--it is a bit tricky just to select the one tank for calibration, see the manual for the procedure.) But the recalibration failed twice. I contacted tech support (catconproducts.com 817-590-8718) and spoke to Steve Barth. His conclusion was that my sensor is bad, and I am getting a replacement. He said sometimes the wiring is subject to corrosion from road spray because of the way the sensor is mounted behind the wheels on most models, but my wiring connections appeared to be OK. I'm hoping the new sensor will correct the problem when I receive it.
If you try a recalibration and it fails there is a way to get the panel to reboot into normal mode, but it is also tricky. It might be easier just to temporarily disconnect the wire to the gray sensor until you can get a replacement.

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Old 05-25-2014, 07:51 PM   #3
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2012 28' International
Issaquah , Washington
Join Date: Sep 2012
Posts: 754
The grey tank can get pretty goopy. You might see if this helps.


2014 Ram 2500 CTD
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