Calcium Hardness Levels for Heater

[FormerBromineUser]

Yup, that's it. How new is the heater? Since we know you don't NEED the CH, if there's ever an issue, raise the CH (and other requirements) before making the warranty call. Not legal advise here, just saying.... What is your handle on that other place?

pH is the most important parameter for heater longevity.