Instafresh product

Professional Grade

Instafresh Holding Tank Treatment

How to use

  1. Holding Tank Systems

    Black Water: Use 1 fl. oz. for each 5 gallons of tank capacity. Pour through toilet into holding tank. Add 1 gallon of water. Grey Water: Use 1 fl. oz. for each 10 gallons of tank capacity. Pour through shower or sink drain. Add 1 gallon of water.

  2. Recirculation Toilets

    Pour 8 fl. oz. into initial water charge.

  3. Portable Toilets

    Pour 4 fl. oz. into waste holding tank with enough fresh water to cover tank bottom. Hot weather and long retention times may require additional treatment.

Instafresh Holding Tank Treatment

Controls holding tank odors and gassing. It also keeps holding tank walls and drain lines free from debris while lubricants prevent drain valves from sticking.

  • When to useSpring, Summer, Fall, Winter
  • Where to useHolding Tank Systems
  • What it treatsFoul Odors, Waste

The Expert Choice

Instafresh Holding Tank Treatment Pro Tips

Trusted by professional captains, television hosts, and marine experts around the globe.

  • Scott Martin

    Scott Martin

    Professional Bass Fisherman

    Instafresh is the secret to odor-free tanks. Drop the recommended amount, and say goodbye to unpleasant surprises. It's like a breath mint for your RV – fresh and worry-free!

  • Shaw Grigsby

    Shaw Grigsby

    Professional Bass Fisherman

    For stress-free RVing, use Instafresh. It's compact, easy to use, and tackles tank odors head-on. A must for every trip – because a fresh RV is a happy RV!

  • Kevin McCabe

    Kevin McCabe

    Television Host

    Instafresh turned my nose-wrinkling tank moments into a thing of the past. Drop it in, and foul odors vanish. It's the easiest way to keep your RV smelling as good as it looks!

  • Ingredients

    N-Alkyl-(C12-C18)-N-benzyl-N, N-dimethylammonium chloride, Isopropyl alcohol

  • Warnings

    Do not breathe mist or vapor. Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. Avoid release to the environment.

  • Legal

    Star brite's liability is limited to the purchase price of this product.