What is TDS and will I have to continue to dump my water if my Total Dissolved Solids go over 1500 PPM?
No, not if the composition of your TDS is based upon the addition of salt to your water for your Salt Pure system. To understand your “true” TDS, subtract your PPM Salt from your TDS. Since the salt required to operate Clormatic is added directly to the pool water there is a rise in TDS levels; however, obviously, there is no increase in the contaminant levels in the pool. Also, since Clormatic is a closed loop system (salt is converted to chlorine and reconverted back to salt) the TDS level does not continue to rise as it would in conventionally sanitized pools. The Clormatic also continuously shocks (burns out, super chlorinates) organics and other contaminants so there is less chance for their buildup. Reference: ( The Proper Management of pool and spa water .