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Post by rpgerstner on Jul 23, 2017 17:46:11 GMT -5
We have a 2016 KZ 337RES and lately the grey tank shows it is 2/3 full even after I just emptied it. I have tried filling it until I think its full and then emptying to no avail. Anybody got any ideas?
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Post by lynnmor on Jul 23, 2017 17:52:34 GMT -5
These things are nothing but trouble. Any scum on the tank walls will cause the problem you are having. Try filling the tank about 1/3 full and add some laundry detergent before your next trip. It might clean it enough to work.
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Post by cartersb on Jul 26, 2017 9:48:25 GMT -5
Also using 1/2 cup de-greaser, Dawn e.g., while traveling will work.
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d2
Newbie RV’er
Posts: 9 
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Post by d2 on Aug 4, 2017 9:01:51 GMT -5
The dealer told me to put about ten gallons of fresh water in it and let it slosh around on your way home then empty it. He said that's what they do with all their rentals and they all work like new.I have had a little trouble with my black tank but I used the built in flush line and rinse it for awhile and that worked.
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