Soil PH balance

Thanks all who helped. Ive been using PH down in all my plain water and Nutrient mixes but my meters still read it being far too high. It could also be the cheap meters I have lol. I'll just have to experiment around and see if I can find a solution for my issues. Thanks once again!

use PH down products or mix in sulphur into the soil. amending your mix with peat moss can also help lower it a bit from the get go but not as a top dress so much. Organic is a bit of a marketing thing, some things cant be classified as organic or not like PH down, so it does not matter where it comes from as long as its produced with care it will be fine. Not all acids are equal, critic acid does not have a long buffer and the PH starts going up again shortly after applying. Phosphoric acid lasts longer. Good Luck!

Lemon juice should work.

It sounds to me like you want to do this organically... there are two options which are always mentioned in any article dealing with this - elemental sulfur and aluminum sulfate... HOWEVER, while elemental sulfur is the safest, it also takes 3-6 months of warm weather to work... aluminum sulfate is much faster acting BUT aluminum is toxic to plants... Bite the bullet here and get some of General Hydroponic's PH-Down - depending on the pH of your water or nute solution, it usually only takes a few drops to lower the pH of the water and thereby the soil as you water/feed. Good luck