G
Guest
Hello, couple weeks ago I used some dropper pH kit, and it was registering my tap pH around the 7 mark, and i tested water inside a 18gal rubbermaid that was just tap water bubbled using an air pump and 1in. stone and it was registering about 8 so I thought it was weird, well I got my digital pH pen and my tap is registering 7.4 like the dropper said and my bubbled water is 8.4, like the dropper test was saying. Is this right? What would cause plain bubbled tap water to raise a whole point? Is it the plastic rubbermaid? maybe the air being pumped through the stone is dirty? I dunno...just seems weird anyone have any ideas?