I finally broke down and bought a Ph meter (the yellow/green strips were diriving me nuts......short drive).
It's a hanna checker one, which I seem to remember reading about here. $39 for the meter, 4 packs of 7.01 solution and 3 packs 4.01 solution shipped to the door in two days. They did say that electrodes are not long lived, 6-12 months more or less, but replacements were in the $17 range. The short electrode life was my big gripe, but I was unhappy with the strips.
It's a hanna checker one, which I seem to remember reading about here. $39 for the meter, 4 packs of 7.01 solution and 3 packs 4.01 solution shipped to the door in two days. They did say that electrodes are not long lived, 6-12 months more or less, but replacements were in the $17 range. The short electrode life was my big gripe, but I was unhappy with the strips.