I have an outdoor plant in mid-flower in a 5 gallon pot.I measured the ph of the soil with a soil meter today and it read the ph around 4.6, which i know is too low. However earlier Today i watered with distilled water and measured the run off with my water ph meter and it read around 7.4-7.8. So first off, Im a little bit confused about which reading to believe. I believe the ph of the distilled water was around 8.5. But i also am wondering that if it is too acidic, should I use ph up to raise it or dolomite lime, or something else? Im just afraid that the plant is getting no P because of the ph range. (If it is indeed acidic). Thanks for you Help!