If it is like cal mag plus or cal max. Then I would go to 250 ppm's. If you don't have a meter don't raise it all at once. Do it in 2 or 3 step, no sense in using too much.
LOC NAR on probation Reviewed by LOC NAR on probation 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