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Old 06-01-2018, 05:25 AM   #4
Stripit
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Join Date: May 2005
Location: Home Prescott, Az
Posts: 1,019
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If you move to full hook up sites I used to dump at the site before leaving, then add Dawn dish soap, a couple of squirts, and a cup of Calgon water softener and about 10 to maybe 12 gallons of water. Traveled to the next park, 300-350? miles. After setting up would dump tank again and my internal sensors read correctly on the black tank. Every so often I did the same with the grey tank of the gauge read wrong. Worked well for us and the hardest thing was to find and buy the Calgon powder.
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