Irrigation contractors in California may be hearing the old reggae song “Pressure Drop” by Toots and the Maytals playing in their heads. If they are, it’s because the state has officially adopted a regulation requiring that, starting next year, any new spray sprinklers they install must incorporate pressure regulators.
According to a story in the Sacramento Bee, beginning in 2020, spray sprinklers in the state will be required to be sold with a component that restricts water flow as close as possible to 30 pounds per square inch.
The story’s writer says the Natural Resources Defense Council states that this regulation is estimated to save more than 400 million gallons of water per day in 10 years. That’s enough to supply San Diego, the state’s second largest city.
The pressure regulating component will add about $3 to each sprinkler’s price tag, “but the cost is offset by water savings within the first year, making the technology highly cost-effective over the life of the product,” an NRDC spokesperson says in the story.
Though it will add to the cost of spray heads for both contractors and their clients, the latter may benefit from lower water bills.
The NRDC spokesperson is quoted further as saying “California’s standard requires new spray sprinkler bodies to come with built-in pressure regulation, so that the water pressure reaching the sprinkler nozzle is always close to the manufacturer’s recommended operating pressure.”
Colorado, Hawaii, Vermont and Washington state have adopted similar regulations.