According to the Gwinnett Co. Ga. website the tap water has a 7.26 pH and a Hardness of 1.5 gpg. Grains per gallon, I never even heard of that measurement. I have never even measured for pH before, NOT EVER! In Ohio where I grew up we had good municipal water and the same thing here in Ga., I never had to deal with well water. Gwinnett gets their water from Lake Lanier.
I check nitrate levels though, ever since I started keeping Goldfish and Koi.
