That would do quite nicely Kilroyscarnival. Gives clear color changes at relatively narrow intervals. Check your waters pH first to give you a baseline reading. If it is between 6 and 8 probably not going to influence pH to much. To wet soil, you need to add just enough water to give you a slurry, thick something a little bit damper than would be required for a throw-able mud ball, let sit for an hour to allow all the soil to wet out and add a little bit more water if needed. You only need just enough excess water to wet the paper
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