Hot Tub Maintenance purging and cleaning

Pushing the limits of Hot Tub Serum

In the foundational materials on this site (see the Hot Tub  home page) I highlighted that biofilms can survive chlorine concentrations of 1-3ppm — levels that some authorities still promote for regular use.  In addition to ahh-some as a purge product, Hot Tub Serum (or “Serum Total Maintenance”) gives us another tool in our toolbox […]

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