Rheem M8350ti Installation Instructions - Page 3

Water Chemistry (Corrosive water voids all warranties) For your health and the protection of your pool equipment, it is essential that your water be chemically balanced. The following levels must be used as a guide for balanced water. Recommended Level(s) Water Temp. (Deg. F) pH Total Alkalinity (PPM) Calcium Hardness (PPM) Fiberglass Pools 68 to 88 7.3 to 7.4 120 to 150 200 to 300 Fiberglass Spas 89 to 104 7.3 to 7.4 120 to 150 150 to 200 Other Pool & Spa Types 68 to 104 7.6 to 7.8 80 to 120 200 to 400 Salt (PPM) 6000 MAXIMUM 6000 MAXIMUM 6000 MAXIMUM Free Chlorine (PPM)* Total Dissolved Solids (PPM) 2 to 3 3000 MAXIMUM 2 to 3 3000 MAXIMUM 2 to 3 3000 MAXIMUM *Free Chlorine MUST NOT EXCEED 5 PPM! • Occasional chemical shock dosing of the pool or spa water should not damage the heater providing the water is balanced. • Automatic chemical dosing devices and salt chlorinators are usually more efficient in heated water. Unless controlled, they can lead to excessive chlorine level which can damage your heater. • Further advice should be obtained from your pool or spa builder, accredited pool shop, or chemical supplier for the correct levels for your water. 3