Should have invested in a good Ph meter when I started this project. Didn't and now I am paying the price. I am growing in soil with the addition of perlite to assist in soil improvement. I just received the measuring devise and the soil shows a Ph of 7.5. My question is can vinegar (Distilled White Vinegar 5% acidity) be used to slowly bring the Ph down to where it belongs. The water that I am using is just a hair above 7 and the water after coming out the bottom of the pot when I water is close to 7.7. I can see why I am having a few growth problems. I know there are several products on the commercial market but vinegar is cheap and easily optained. H E L P