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The TST Orange Drop-Ins help control unwanted odors and break down waste and tissue in your black water holding tank. The easy to use drop-ins contain a special chemical that helps break down waste, and a blend of citrus-scented surfactant oils that trap unwanted odors in your tank, making your camping experience more enjoyable. The drop-ins are RV and marine approved, non-formaldehyde and safe for all septic tanks—they’re even great for portable camping toilets! Each bag comes with 15 drop-ins.

Product Features

  • Eliminates odors and helps break down waste in the RV holding tank
  • Ultra-Concentrated: just one drop-in treats up to a 40 gallon tank
  • Does not contain the toxic, formaldehyde-releasing ingredient bronopol
  • RV and marine approved; Safe for all septic tanks
  • Fresh citrus scent, 15 drop-ins/bag

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  1. Anonymous says:

    Seemingly a good product… How do you really know if these are working or not? From what I can tell, you don’t. Here’s the experience I have had in 2 seasons of using these:1) They’re super easy to use, and this is the main reason for buying them. Arrive in camp, fill toilet bowl with water, place pouch in bowl, and flush. That’s it! No measuring, no nothing.2) Haven’t had any paper clogs in our black tank. 3 women in the trailer. Using Charmin Ultra (it says it’s septic safe on the…

  2. Anonymous says:


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