From The University of Arizona College of Agriculture and Life Sciences - RV Holding-tank Treatments & Deodorizers in Septic Systems PUBLICATION AZ1233 6/2001, Revised 3/2010
The restoration of failed RV-park septic systems ultimately costs you money. The costs to renovate a system will be added to your space fee, and the restoration of contaminated groundwater can be extremely time consuming and costly. Further information is available on household septic systems at the University of Arizona Extension publications web page (http://ag.arizona.edu/pubs).
Table 1. Active ingredients you should avoid using in your RV holding tank deodorizers.
|Active Ingredient||Threats to Human and Environmental Health|
|Bronopol (chemical name: bromo-nitropropane-diol)||bacterial pesticide|
|Dowicil (chemical name: 1-(3-chlorallyl)-3,4,7-triaza-1-azoniaadamantane chloride)||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 carcinogen1; moderately toxic to humans2|
|Glutaraldehyde (also known as embalming fluid)||Retards bacterial growth and covers sewage odor, eye/inhalation irritant|
|Paraformaldehyde (polymerized formaldehyde)||very toxic to humans3 (see formaldehyde)|
|Para-dichlorobenzene (common ingredient in mothballs, urinal cakes, and toilet bowl fresheners)||known carcinogen1 and drinking water contaminant; moderately toxic to humans2|
This fact sheet was adapted from Alert for RV, Boat and Mobile Home Owners and Park Operators About Safe Wastewater Disposal, EPA Publication 909-F-99-002, July 1999.
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