How do I raise my soil's PH?

My babies are having problems, my runoff is PH6.0 or lower & I have severe nute lockout. I have flushed twice with water between 6.8-7.0 PH trying to raise it and it has not helped, how can I quickly raise my PH?!?!

theres chemicals you can buy

you can use lime to make it more alkaline...sulpher will make more acidic

googlr it... there are heaps of options

Diluted urine to water (1:10 urine:water). Urine is usually above 7.

Plus the nitrogen is good eats for plants.

h2o2 aka hydrogen peroxide. the store bought stuff is about a 8,a few capfulls per gallon will do

dolomite lime will buffer the ph, plus its got loads of ca and mg so it will clear up if your lacking those, if you dont have pf up then a bit of baking soda will help, but lime is the way to go, ten bucks or less will get you a big ass bag at any garden store or home depot