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Hannah copper checkerIs what I am using . I have rocks and its bare bottomHow are you testing the copper levels?
Hannah copper checkerIs what I am using . I have rocks and its bare bottom
Yeah it gives a reading of .05 on freshly mixed waterThe Hannah is not apparently suitable for low level copper testing. A number of folks see false high readings.
Yeah, I have one and it gives different readings for back to back testsThe Hannah is not apparently suitable for low level copper testing. A number of folks see false high readings.