Answer
Sep 11, 2020 - 08:23 AM
Biocide Systems 3244 RV Shocker Odor Eliminator is not for use in a black holding tank. It is used inside the RV to help get rid of the smells inside the RV. If you are looking for a good holding tank treatment, check out Kronen, below is a link.
https://www.rvupgradestore.com/search...
https://www.rvupgradestore.com/search...
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