A salt cell in pool chlorinators is part of the system that actually converts Salt (NaCl) to Chlorine. As the chlorinator cell produces chlorine, scale develops on the metallic grids decreasing its performance. The cell is cleaned by submerging in a mild acid solution until the scale that has developed has dissolved. Cleaning the cell too frequently or using an acid solution that is too concentrated will prematurely erode the coating off the titanium grids, and thus rendering the cell useless. UTron manufactures s elf c lean s alt c ell which has the ability to reverse the polarity of the voltage to clean calcium build-up off its electrodes . It consists of a series of titanium electrodes coated with ruthenium o xide or i ridium o xide coating . The electrodes work alternatively as a cathode or an anode to the purpose of eliminating the incrustations of c arbonate of c alcium and m agnesium which form on the surface. This continuous reversing of polarity will keep t