These drinks are all diuretics and will actually leach the water out of your system. You get hydration but not close of what you get by drinking water.

The recommendation is to have your water analysed by a laboratory and then built a system to deal with the specific impurities found in your water

RO systems combined with additional carbon and nano filters are effective removing bad minerals, waste, bacteria, and other harmful material from the water

The fact is that today in our industrialized society, we use over 75,000 toxic chemicals, and over 1000 new ones are developed each year.

Actually, there is an easy was by monitoring the colour of your urine. A good way to tell if you're drinking enough water is the colour of your urine.