letter no. 1
What is the difference between drip irrigation and sprinklers, and which do I need?
the desk replies — Sprinklers (pop-ups) spray over an area and are right for lawns; drip lines deliver water directly to each plant's roots and are right for beds, hedges, trees and pots. Most well-designed gardens use both on separate zones. Drip loses far less to evaporation, but its emitters clog with limescale and need flushing a few times a year.