Whatever......I'm going to try to get one anyway. I don't know if they can really verify it or not. I'm not getting robbed or killed for nobody! Too many nut jobs out here for me
I've never used vinegar to bring PH down, but I do currently use lemon juice. But because tap water doesn't always keep the same PH level, I would say invest in a PH meter preferably one that checks the tds level as well.