Tanked Posted April 6 Share Posted April 6 Like many of us, my test strips indicate a GH level of 300+ppm or 17.5 gpg (out of range). Hard water has been offered up as to why some plants don't grow well, and other issues. I just got off the phone with my municipal waterworks. I asked them what they thought my GH was. My water comes from two different sources. Their tests indicates that my water is between 109-151 ppm or 6-9gpg. The person on the phone was an aquarium keeper and presumably knew what I was referring to. While she was looking up the information I tested my tap water, and got the 300+ppm result as expected. Just in case the test strips were off, RO water tests came in at 0ppm. Is it reasonable to think that the waterlines are adding that much hardness, or is it something else? Link to comment Share on other sites More sharing options...
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