VitaLink ESSENTIALS pH Down Easy is a quality adjuster necessary to control the pH of nutrient solutions. At 25% Phosphoric Acid it is less concentrated than VitaLink ESSENTIALS Down, and allows a more gentle change in pH level.
Use
Adjusting the pH of your nutrient solution should always be done after base nutrient and any additives have been added to the feed water.
It is good practice to allow the nutrient solution to stand for 10 minutes before adding pH down.