No. The UC-Series does not reduce TDS or water hardness.
A TDS/PPM meter is not valid for testing this system's performance. To monitor performance, use chlorine or contaminant-specific test strips.
This filter is designed to remove specific contaminants like chlorine, not minerals that cause hardness. If you need to reduce TDS or soften water, you require a different system.
Contact APEC Water for reverse osmosis options, which are designed to reduce TDS. Their support number is (800) 880-4808.