Pool and Spa Chemical Levels and Pool Water ChemistryUpdated a year ago

Recommended pool and spa chemical levels and Pool Water Chemistry

At the bare minimum, your pool's chemical levels should fall within the levels below. 

• pH: 7.4 to 7.6
• Alkalinity: 100 to 150 ppm
• Calcium Hardness: 175 to 225 ppm and 225 to 275 ppm for plaster pools
• Cyanuric Acid (CYA): 30 to 50ppm
• Free Chlorine (Regular or Salt Water Pools): 1 to 3 ppm (I recommend you keep it at 3 ppm)
• For Bromine Pools: 3 to 5 ppm
• For Biguanide Pools: 30 to 50 ppm
• For Mineral System Pools: 0.5 ppm of chlorine
• LSI:  0.3 all the way down to -0.3 

Regularly testing and adjusting these chemical levels will help keep your swimming pool clean, safe, and enjoyable for swimmers. It's recommended to test these levels at least weekly and adjust them as needed to maintain proper water balance.

We have a guide on ALL the different chemicals we have on the online pool store and how they affect the different chemical levels in your pool. 

Check out Mr Pool Man's Ultimate Pool Chemical Guide here

To get the LSI, check out our guide on how to properly measure your LSI levels here