invi
New Member
My well water is ph'ing at 7.4 now, which is a full point higher than it was before. And I tested some distilled water (which should be neutral, 7.0 from what research I've done) and it's coming up at like 5.5 or so.
Tap and well water pH can change easily.
Too clean water can f up the pH meter i believe. It will make the read inaccurate, and the value is not really relevant anyway (since the water is so clean). Use the pH buffer solutions to test/calibrate the pen.
You can measure soil pH by letting some soil sit in about 2x the volume of clean water for few hours, then measure the pH of the liquid.
Don't think you can calculate it from the water and runoff pH especially with distilled water.