Thetford Aqua MAX® Spring Showers RV and Marine Black and Grey Holding Tank Treatment, 6 x 8-oz Liquid (96634), spring showers scent
Thetford Aqua MAX® Spring Showers RV and Marine Black and Grey Holding Tank Treatment, 6 x 8-oz Liquid (96634), spring showers scent
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Thetford Aqua MAX® Spring Showers RV and Marine Black and Grey Holding Tank Treatment, 6 x 8-oz Liquid (96634), spring showers scent

Key item features

  • Enzyme Formula: Features an enzyme-based formula that effectively breaks down and liquefies waste and toilet paper in holding tanks.
  • Odor Elimination: Eliminates offensive odors from holding tanks, leaving a pleasant spring showers scent.
  • Tank Compatibility: Designed for use in RV and marine holding tanks, as well as portable toilets.
  • Eco-Friendly Composition: Formaldehyde and Bronopol-free, compliant with regulations, and formulated with beneficial probiotics, making it campground and marina friendly, and safe for septic systems.
  • Convenient Dosing: Each 8-oz bottle treats a 40-gallon holding tank, with six doses provided per pack for easy application.
  • Waste Prevention: Accelerates waste digestion and prevents clumping, clogging, and residue buildup within the tank.
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was $24.78
28.3 ¢/fl oz
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Customer ratings & reviews

4.4 out of 5 stars
stars135 ratings63 reviews
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Reviews summary

Pros

  • : No measuring required for application.
  • : Offers affordable options for customers.
  • : Ideal for use in camper settings.
  • : Cuts down on germs and grime in toilet bowls.
  • : Leaves a clean smell in the holding tank.
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Showing 1-3 of 63 reviews

Sep 12, 2025
Carrie
Item details
Count: 6
5 out of 5 stars review

Verified Purchase

We have been using this product since 2019. It does the job.

Helpful?2MLWNXUYLDVT176535851
Jun 4, 2026
anonymous
Item details
Count: 6
5 out of 5 stars review

Verified Purchase

Used this product before. worked well

Helpful?2MLWNXUYLDVT176535851
Sep 5, 2025
WalmartCustomer
Item details
Count: 6
5 out of 5 stars review

Verified Purchase

Have used this product for years. Disappointed I can't buy it in the store but am glad to find it online

Incentivized Review
Helpful?2MLWNXUYLDVT176535851