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Old 02-13-2019, 04:16 PM   #36
CWtheMan
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Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
It’s a subject that seems to work different for different reasons. We were very active full timers, racking-up 75-100 campgrounds per year. Our method seldom gave us any problems.

Our black tank valve is always closed from dump to dump. We flush and dump on every move, even if it’s just an overnighter. When necessary – black tank becomes ¾ full, we flush and dump.

We use a blue/green garden hose for flush & dump. I connect the garden hose to the garden hose flush fitting and fill the black tank until the warning light blinks. I open the black tank valve and flush & dump until I have a clear flow. I use a clear sewer fitting something like this one - https://www.walmart.com/ip/Valterra-...d=actual_color.

Our gray tank valve is always open when we are connected to a sewer. I close it before we take our “nite-nite” showers and open it after I’ve completed the black tank flush & dump. It helps clear residue from the sewer hose.

At final walk-around we put in an 8 oz liquid tank treatment chemical like the one in the reference below and then add 5-10 lbs. of ice cubes/crushed ice down into the black tank and top it off with 3-5 gal of fresh water. It will help loosen up any sludge in the black tank. At the next hook-up I open the black tank valve and rinse it a little before closing it again for the stop.

Just about any biodegradable toilet paper will work. We have always used Scott regular 1000 sheet.

https://www.walmart.com/ip/Campa-Che...ord-13288/4016


Note: We have a portable ice maker that's always making ice when we,re parked.

https://www.walmart.com/ip/Igloo-ICE...0f&athena=true
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