Drill a ⅜-inch hole in the barrel's lid, and thread the irrigation tubing up through it. Fill a nylon-mesh bag or cheesecloth with about 7 pounds of aged compost. Pull the top of the sack through the lid's center hole, and hang it from a dowel so that the sack is suspended in the center of the barrel. Place the lid over the barrel.
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Drill (or drill/driver)
⅜-inch spade bit
3/16 drill bit
Pump sprayer (for applying the compost tea)