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Water Chemistry Guidelines

Effective October 2019, APSP and the NSPF merged to form the Pool & Hot Tub Alliance (PHTA). The ranges listed below are the original APSP guidelines.

 

Recommended Guidelines For Water Quality

 

Effective October 2019, APSP and the NSPF merged to form the Pool & Hot Tub Alliance (PHTA). The ranges listed below are the original NSPF guidelines.

 

Recommended Guidelines For Water Quality