Black Tank Treatments - Yay or Nay?
This is two-part thread.... I have been RV camping for most of my life. I can always remember my dad using the old blue liquid in the toilet after dumping the tanks. This what I did once I started ...
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Did it both ways... The only difference I noticed is if on a full service site and I dumped. rinsed and CLOSED THE VALVE. no problem.. If I forgot and left either the black or gray valve open Stink.
