Tore out a tangle of irrigation tubes installed by a former landscaping contractor in two of our building’s planters because half the drippers weren’t dripping. I replaced them with a system based on pressure-compensated manifolds (bottom right) that deliver a reliable 2.0 gallons per hour to every single emitter, regardless of water pressure. Thirty years ago, a fresh-grad landscaper introduced us to this technology, which back then was mainly used in farming.
