Swimming pools blog

Biguanide is one of the more popular non-chlorine, non-bromine
chemical sanitizers. The main advantage is that no chlorine or
bromine is required and there is little chemical odor. Biguanide is
an effective bactericide and can replace chlorine or bromine in that
function. However, chlorine or bromine are also oxidizing agents
that can destroy organic contamination: biguanide cannot destroy
organic contamination and, therefore, concentrated hydrogen peroxide
must be added to the spa or hot tub on a regular basis. A
disadvantage of biguanide is the development of biguanide-resistant
micro-organisms, after several years of product usage. This usually
takes the form of a pink slime or water mold.