Never tried that. I have some liquid sodium hydroxide that I've used a couple times on the rare occasion that I've had to raise pH.... just adding it dropwise, mixing, and re-testing after each addition. But it's nasty stuff.
Honestly you should go pick up a pH up/down kit. It's simple and inexpensive.
stinkyattic Reviewed by stinkyattic on . Adjusting pH Hey, sorry for asking as i could probaly find it. But, the search on this website dosn't let you search such small words "pH" maybe someone should change this anyhoo I wana lower the pH of my water can I use viniger. or is there anything else i can use around the house so i dont hav to go buy pH down thanks Rating: 5