(1) Plastic deck planter with a sealed bottom.
We used a Dynamic Designs 27" x 12" x 10" deck planter with a sealed bottom. You can use a round or square design too - you'll just have to improvise the plans but the theory is the same. Use a container that is free from holes and made of a rugged, opaque plastic.
Connects the pump outlet to the air curtain.
(1) 2500cc minimum Aquarium Air Pump
We used a single output air pump with a "T" fitting to split the air line into two feeds. You can use a dual outlet for better performance without the "t" fitting. These types of pumps are commonly available in pet stores throughout the country.
To split the output of a single outlet air pump - not necessary if using a dual outlet air pump or if you use a single air curtain that runs the entire length of the planter.
(2) 2" Air Curtains or (1) 24" air curtain
Provide a full length stream of air bubbles to oxygenate nutrient bath.
(7) Gal. of GroRox or expanded clay pellets, Lava rocks or 3/8" gravel. Used as a growing medium to fill the planter. You need to make sure that the medium is clean from grit and dust as they will drastically alter the pH and sacrifice your crop. The quantity required is based upon planter size.
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