TDS stands for “Total Dissolved Solids” and in simple terms refers to anything solid that is dissolved in the water. Your Naked System has a built-in TDS meter that measures the water and can be checked by pressing the TDS Test button. A total of four readings are displayed for 30 seconds in the FWD direction and then another 30 seconds in the REV direction.
TIP! – A clear indication of low TDS in the pool water is the OXI OUTPUT will not be showing 100% or less than its original set point. If the OXI SET = 100% but the OXI OUT during Timer 1 or Manual Mode is showing much less than the set point, this is a clear indication that the TDS levels are low or you have high calcium build up on the plate material in the cell and it requires cleaning.