Review on Improved Reducing Standard with Brita Filtration Reminder by Chris Crawford

If you believe something, disclose your evidence or theory to test or disprove it. Enter filtration or water purification. I installed two reverse osmosis filters in my kitchen sink. They claim to remove impurities from the water. I bought a TDS (Total Dissolved Solids) tester and found that the results obtained with reverse osmosis filters are excellent. I have now moved into an apartment and installed this Britta Tap filter system. I used the same TDS tester to test the output of a Britta Tap filter. The filter output compared to the faucet output shows that this filter is a waste of money. The output of both tests is 172 TDS with no difference. I don't expect this filter to work as a reverse osmosis filter, I expect there will be a difference even if it's not significant. Not true?