my chem teacher let me borrow her electronic ph tester today. my neighbors water was like 8.7 pH, my tap water is 8 pH, and my water from my hose is like 7.8 and still rising, i don't know why its taking so long to determine it, i bet its because its a lot colder or something. white vinegar mesured at 2.7, and balsamic was 3.15 so i think im going to stick with the white. but thanks for clearing that up stinky, i was going to do all these tests to see if i could figure out how much i needed to add mathematically, but it sounds like their are some variables that i couldnt possibly find out. what else is there besides phospheric acid? that chemistry room has a whole bunch of chemicals that i bet i could borrow.

phospheric acid = H3PO4 ?