Yes and no - it depends on what your water contains. If you learn that your water has a high TDS level, we recommend arranging for further water testing to learn exactly what is contributing to your water's TDS. You might discover that there are certain contaminants contributing to your TDS, and when you reduce these contaminants, your TDS level drops. So, using a TDS removal solution may not be essential - you could get the same outcome from using a normal filtration process, like a chlorine or lead filter.