Phosphate in pool water (TN37)

PWTAG Technical notes are updates or new material for the standards and guidance given in the PWTG book, Swimming Pool Water and the PWTAG Code of practice and should be read in association with these publications.

This technical note provides guidance on the significance of phosphate levels in pool water; including what safeguards are recommended.

In general, the better the quality of pool water, the less chance there is of the presence of unwelcome organisms. Bacteria and algae flourish in water containing the key nutrient, phosphate. If phosphate can be absent, bacterial and algal growth will be minimised.


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