Yes, this is as the buffers cancel the acids/alkalines and there is still imbalance and I think I read somewhere it is because the water is absorbing ? CO2 ? from the atmosphere and that caused the PH to change. I like at least a 24 hours sit before checking PH, but never had it continue to change after the first 24 hours....but I use about 5 gals a day total, so I just let one bucket a day sit out.
WashougalWonder Reviewed by WashougalWonder on . Ph altered water reverts back over time? Hi everyone I just have a quick question I wanted to ask since I've searched loads of ph related threads but not come across the answer and I'm curious. I put in my PH down into the tapwater (tapwater is PH 8) that had stood open airing for 24hrs and checked the reading with my little aquarium strip tester - the result was clearly in the 6.5 PH colour. I watered my baby seedlings and then as there was still water left over I continued to use this water over the following days. When I Rating: 5