Quote Originally Posted by texashustle
So lucky. Mine is 1740 ppms. Crazy hard water here!
thats insane. need to floss after taking a drink at that rate!

i live in an urban area in socal and its about 350 ppm (love my hanna combo meter).

i R/O it and it comes out to about 25 PPm and thats what i work with. i cant stress the overall importance of having the LEAST AMOUNT of crap floating around your water. means you can add more nutes/additives and that you dont have many toxins in the water.
TheDuck Reviewed by TheDuck on . tap water ppm question tested some fresh tap water straight out of the faucet, ppm = 55. tried testing some tap water that has been sitting in a plastic bin for about 3 days, ppm = 75. does this make sense? shouldn't the ppm be going DOWN as chlorine and other chemicals evaporate from the water? also, considering it's city water, shouldn't the ppm be higher? read a lot of threads with people saying their water was a few hundred ppm straight out of the tap. will calmag plus be needed?? thanks! Rating: 5