RV Holding Tank Product Info

The information and links are pertinent to formaldehyde-based RV holding tank treatments. CalARVC encourages the sale and distribution of bacteria-based RV holding tank products.

California Chemical Toilet Products Advisory for Consumers – Park operators are encouraged to print this out and post it in a conspicuous place where consumers can read it.

EPA WasteWater Alert

University of Arizona Bulletin – RV Holding-tank Treatments & Deodorizers in Septic Systems

RV Holding Tank Product List

Active Ingredient List – Ingredients Commonly Found in RV Holding Tank Treatments Which Pose a Threat to Human & Environmental Health

  • Bronopol (chemical name: bromo-nitropropane-diol) – a bacterial pesticide
  • Dowicil (chemical name: 1-(3-chlorallyl)-3,4,7-triaza-1- azoniaadamantane chloride) –  a bacterial pesticide (EPA states “Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority.”)
  • Formaldehyde (also known as Formalin; degradate of bronopol) – kills or retards bacterial growth, recognized by EPA as probable carcinogen(1); moderately toxic to humans(2)
  • Glutaraldehyde (also known as embalming fluid) – Retards bacterial growth and covers sewage odor, eye/inhalation irritant
  • Paraformaldehyde (polymerized formaldehyde) – very toxic to humans(3) (see formaldehyde)
  • Para-dichlorobenzene (common ingredient in mothballs, urinal cakes, and toilet bowl fresheners)  – known carcinogen(1) and drinking water contaminant; moderately toxic to humans(2)

(1) a carcinogen causes cancer
(2) lethal dose for 150 lb person is between 1 ounce to 1 pint
(3) lethal dose for 150 lb person is between 1 teaspoon to 1 ounce

Legislation Currently in Effect – §67410.1. Prohibition of Sale.

(a) On or after January 1, 1979, no person in the State of California shall manufacture, formulate, package, import or receive from outside the State and sell or offer for sale within the State a material for use as a chemical toilet additive, as indicated on a label on the container or by any other representation by said person, which contains a nonbiodegradable toxic chemical substance.

(b) On or after January 1, 1979, no person shall sell or offer for sale at retail or wholesale within the State a material for use as a chemical toilet additive, as indicated on a label on the container or by any other representation relating to the sale of the material, which contains a nonbiodegradable toxic chemical substance.
Title 22, Article 4.5, Chapter 41