I'm in Australia
I have a Taylors test kit and have run out of reagent R-0014. I purchased a generic phenyl red from the local store but it is way milder / weaker and I estimate I need about 3 times as much. So its not accurate with their test gear.
I can't get the reagent in Australia and the postage from the states is like $45.00 for a tiny bottle . Should I just buy a readily available ph test kit ($10.00) and use that or do you recommend I stick with the Taylor's.