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Old 05-21-2013, 06:18 PM   #1
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Grey Tank Cleaning

How do you clean out your grey tank? My tank level indicator was stuck at 1/3rd even after I emptied it! I flush the tank several times, but nothing worked! Now it's stuck at 2/3rds when emptied! I believe there is a solid build up on the sensor sidewall of the tank. What is the best method to get the tank clean?

Thanks for any info or suggestions
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Old 05-21-2013, 06:29 PM   #2
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I drain, fill with about 10 gallons or so, add a 1/2 cup of Dawn dish detergent and then drive. As soon as we arrive at our new destination I drain the tank again. I use this method every 2 or 3 months.
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Old 05-21-2013, 06:31 PM   #3
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I'd try the GEO Method first, followed by a good dose of Dawn dishwashing detergent to help cut the grease. You could do the GEO method, then the detergent. I'd suggest a bag of ice, but I don't know how you'd get it in the grey tank.

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Old 05-21-2013, 06:33 PM   #4
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As said the Dawn and driving works well, there is some commercial products out there.
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