Hi, I am currently snowed in and cant make it to town to buy some 'PH UP'.
Is there a substitute I can use until I can get some ?
I am growing in hydro (wilma/dripper system) and my ph is 4.8.
I'd use tap water also. The effectiveness of kitchen solutions such as vinegar and baking soda is measured in hours.
Recently i've learned if you cannot fix your ph issues with tap water/nutes your rez is too small.