grim, also our tap water is extremely hard (off the color scale here) so if you're using it you should be thinking about fixing it. i used to use a britta water purifier (it knocks our tap water down to around 5.0) but ex-roomy took it with her. i needed to water today and had nothing to lower the ph with (so i thought) so i tested some orange juice in the water. one tablespoon took it down from above 9.5 to 6.0! i ran the test several times and each time came out with the same results...
so you know what i'll be doing with our water supply when needed...