Land, Brenda ; Fleming, Joe . 2008. Magnesium Chloride Toilet Vault Treatment: A Means To Inhibit Freezing in Outdoor Toilet Vaults. 0823 1301P. San Dimas, CA: U.S. Department of Agriculture, Forest Service, National Technology and Development Program.

This 4-page tech tip discusses the effectiveness of using magnesium chloride to prevent toilet vault contents from freezing. SDTDC was asked to address the issue of frozen waste. The project's goal was to develop a system or technique that will prevent (or inhibit) stalagmite formation in the vaults. If the contents can be kept in a fluid condition, the waste will spread evenly throughout the vault and not form a frozen cone. Magnesium chloride proved to be an effective and cost-effective solution compared to steam cleaning and pumping.

Keywords: freezing, frozen waste, magnesium chloride, prevention, toilet vault

E-mail this link.

These files are best for printing:

View low resolution PDF (316 kb)

View high resolution PDF (1480 kb)

If you experience problems using the higher resolution PDF file, use the lower resolution PDF files if they are listed.

(Help with PDF files)

Click the icon to download a free version of Adobe Acrobat Reader.