One of the most common ways to prevent water from freezing in a portable toilet and causing damage is to add a brine solution of rock salt and water. Most portable restroom operators mix a large batch of brine at their home shop, fill up their truck(s) there and store the remaining brine for future use. Mixing a brine solution isn’t difficult. To learn how to do it, check out this infographic.
A rock salt and water brine is just one of a handful of ways to prevent freeze-ups. To learn about the others and for more information on winterization, read our article. You can also download our winterization white paper from the JohnTalk Vault. For free access, sign up for an account and log in.
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* Courtesy PRO Monthly- https://www.promonthly.com/editorial/2009/02/avoid-ice-cube-holding-tanks
** Courtesy KeeVac Industries- https://www.keevac.com/uploads/news/id149/Freeze%20protection.pdf