What I've been told and as well reading all over the internet is that vegetable plants grow best in soils of about PH6.5, slightly acidic. Being slightly acidic allows the nutrients in the soil to feed up in to the plant roots!

The PH of my soil was about PH9 when I measured it so I sprinkle sulphur chips on it.

Why do you reckon that water at PH3 because of pine needles soaking in it will not alter soil PH?