Does it have a shelf life?
Brendan43 New member Mar 30, 2015 #2 I've used it a long time but you got me there. There's a good way to find out if it's any good though- just use a pH test strip. If it tests toward the zero end, you're good to go.
I've used it a long time but you got me there. There's a good way to find out if it's any good though- just use a pH test strip. If it tests toward the zero end, you're good to go.