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D_and_A_plus_6's avatar
D_and_A_plus_6
Explorer
Feb 04, 2014

Black Tank Build-up

My Father-in-Laws's TT has some build up in the Black Tank. When it warms up I plan on putting water in the black tank and let set, then dump it, repeating several times hoping to loosen some of the build-up up. I was also thinking about the Geo Method, will it help loosen build-up? Also thinking about using a heated power washer, sticking wand down through toilet, and placing a old towel at the top to catch slash back and move the wand around as much as I can to break up as much as I can reach.
Any other ideas except keep using lots of water.

Thanks

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  • WyoTraveler's avatar
    WyoTraveler
    Explorer
    Feb 04, 2014
    The wand that Walmart sells doesn't work that great. You can build a wand that will help in the flushing. A good wand will help but multiple filling and emptying like other posts mention is about only way to clean after an extended time without proper cleaning.
  • twins89's avatar
    twins89
    Explorer
    Feb 04, 2014
    When the weather breaks; fill the tank with HOT water and one half bottle of Calgon water softener. Let sit. Drive around on some bumpy curvy road. Dump. Repeat if necessary. We had this problem and this did work for us. Some people still don't know not to leave the black tank valve open and to use lots of water. Good Luck.

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