Watkins Wellness 74935 Pressure Switch, DJS/RTA Type_Absorbing Sponge Do not add treatment through

Do not add treatment through the skimmer

Once stabilizer climbs past roughly 100 ppm

which means standard inserts simply won't fit without major masonry modification

Maintain pool water in the pH range 7

Watkins Wellness 74935 Pressure Switch, DJS/RTA Type_Absorbing Sponge Do not add treatment throughWatkins Wellness 74935 Pressure Switch, DJS RTA Overview Restore safe and reliable heater operation with the genuine Watkins Wellness 74935 Pressure Switch. Designed for select Watkins Hot Tubs, this pressure switch monitors water flow through the heater and helps protect your spa from overheating caused by low flow conditions. Whats in the Box 1 x Watkins Wellness 74935 Pressure Switch, DJS RTA Features OEM Watkins Wellness part Monitors water flow