ph - cant get it right

wow didnt know that. imma go do a lil experimenting

what did you find? let us know

If it were me I'd spend the 15-20 bux and get some calibration sachets. Knowing your pen/tester is accurate is 99% of the battle. They sell calibration solutions for a reason.;) And, as stated above, use the pH down sparingly. It does not take much, powder or liquid. Let us know how things go. Best of luck on the grow.


b0nger

I added less than 4 drops of liquid PH down to go from 7.0 to 5.8 per gallon. (as I recall)

I am using RO water now, so I have to PH up a couple drops.

its alot easier to ph r/o and distilled water, my well water takes like 3-5ml a gal