01-12-2015, 02:47 PM
Most water needs to be treated to be safe regardless of the source. I consider unfiltered/unsterilized catchment water to be dangerous, and I wouldn't drink it. I consider my 20, 5, and .5 micron filters and UV sterilization unit to be my own water treatment system. I think Hawaii municipal water is pretty good. I have consumed tap water in some cities that practically had to be chewed before swallowing it was so gross. The water in Hilo is definitely much better tasting than the water in Kona.