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General Hydroponics (GH) pH Control Kit: $23.99
GH pH Control Kit Contents
8oz pH Up solution
8oz pH Down solution
1oz pH Test Indicator solution
Small vial
Transfer pipette
Use
Add pH Up to nutrient solution if it's too low
Add pH Down if nutrient solution pH is too high
Ideal pH is 5.5 to 6.5
To measure pH, fill the vial halfway with nutrient solution, use pipette and squeeze 3-5 drops of GH pH indicator solution to the vial. Mix and observe the color. Compare to chart.
