I decided to measure my pH, TDS, EC, Salinity, and Temperature of my tap water (straight from the sink). I also decided to measure this by the water filtration method we are using (Zero Water - pitcher)I did a couple of scenarios as in my baseline tap water cup. The second one was a current cup filled from a previous filter change. This means it had multiple refills of the water and our current pitcher being used. So probably like 3-7 pitchers already drank.The other test was from a new separate zero water pitcher that has had only one single drain using all 64ozs. I've labeled it as SINK, PITCHER A & PITCHER B each of the pitchers filters had just been changed and I wanted to have a separate comparison for each. I do want to see this tested again after the filter is ready to be renewed (as Zero water suggests it at 006ppm)I really am surprised that the basic tester Zero water gives you is actually good enough just to show you how much bad or good it is working. I did notice that the tested I used which had the ability to test multiple ways was by far a better method and way more reliable andrs accurate in my opinion. Below is the list of tests I have found for my own personal experience and test. I suggest you check it out yourself. Especially when you talk about the difference between the SINK water and the water from the SHOWER/Bathroom Sink. It'll open up your eyes as to why the bathroom was irritating the SKIN for some of the people in my household. I would recommend getting the AquSoft tester & the Zero water filter for drinking. Aside from reverse osmosis filters, this is hands down the best option for those on a budget and are very interested in their own health.The pitcher itself is a durable, easy to clean pitcher. The neutral colouring helps you easily to see when the pitcher gets dirty so you can wash with soap and water and start using it again. The only thing that I can mention about the filter changes would be to make sure you TIGHTEN the filter on correctly (threaded properly). Plus do not, over tighten the tension between the two (pitcher & filter). Otherwise you might have some difficulties removing the old one. So far I haven't had any issues after not trying to tighten it too hard. We drink and use the filtered water for everything. Coffee, tea and cooking etc. You name it and we try using it. Way better than plastic bottles. Might cost a bit more but it's way worth it for us.-=-=-=-=-=-=-=-=-=-=-=-=CUP-1 = SINK (TAP WATER)Zero Water Tester probe325567ppm75.2°549ppm74.1°567ppm73.7°1156us/cm73.4°1155us/cm73.2°1151us/cm73.2°0.05% Salinity73.0°0.05% Salinity73.0°0.05% Salinity73.0°7.91ph73.0°7.79ph73.0°7.74ph73.0°-=-=-=-=-=-=-=-=-=-=-=-=CUP-2 = ZERO Pitcher AZero Water Tester probe000001ppm74.3004ppm74.8°002ppm75.0°006us/cm75.2°007us/cm75.3°01175.3°000% Salinty75.5°000% Salinity75.5°000% Salinity76.5°6.01ph75.5°5.86ph75.5°5.78ph75.5°-=-=-=-=-=-=-=-=-=-=-=-=CUP-3 = ZERO Pitcher BZero Water Tester probe000000ppm75.0°000ppm75.0°000ppm74.8°000us/cm74.8°000us/cm74.8°000us/cm74.8°000% Salinty74.8°000% Salinity74.8°000% Salinity74.6°6.30ph74.6°6.13p74.6°6.07ph74.6°