Low chlorine level in salt water syatem even when salt level is between 2900 - 3200?

A pool can show low levels of chlorine if the cyanuric level is below 50 ppm

parts per million. Cyanuric acid or conditioner is important to allow clorione

to stablise from ultraviolet light that breaks down chlorine. Chech to make sure you have the proper level of stabilasert (cyanuric).