The Problem with Traditional Sprinklers
Historically, most irrigation systems have non pressure regulated sprinklers that often operate over pressurized. Over pressurization can lead to water loss and contribute to uneven watering.
Pressure regulating spray heads are a developing technology designed to maintain optimal pressure for performance. These spray heads include built in regulators that keep the pressure more constant, ensuring better nozzle performance.
WHY IS PRESSURE REGULATION IMPORTANT?
Two reasons: They will save water and it is likely soon to be the law.
Water Savings
WATER SAVINGS: Compared with non-regulated, pressure regulated sprinklers will use about 20-25 percent less water. And if the nozzle breaks, pressure regulators are estimated to save 70 percent of the water that might have been spilled if using an older sprinkler system.
Legal Requirements
Many states including Washington and Oregon require pressure regulation. Since Jan. 1, 2021 Washington requires PRS. While government regulations are frustrating, these actually make real sense.
SAM-PRS Spray Heads
We are converting our spray head inventory to those with Pressure Regulation (PRS) and Check Valves (SAM). Per above, PRS is becoming the law but both PRS, and SAM save water.
Built in PRS pressure regulator maintains constant outlet pressure at 30psi ensuring maximum nozzle performance, even with varying inlet pressures. Saves 20-30% water compared to standard heads.
Restricts water loss by up to 70% if nozzle is removed or damaged.
Built-in Seal-A-Matic (SAM) check valve eliminates low head drainage from spray heads located at the base of slopes or hillsides.
As a part of our water conservation initiatives, we will be recommending replacing spray heads with SAM-PRS heads to save 20-30% in water use and cost.
MP Rotator
Revolutionary Water Delivery
The MP Rotator is a revolutionary alternative to traditional sprinkler heads and pop?up sprinkler heads that spray the landscape. MP Rotator nozzles feature unique, multi?trajectory rotating streams that deliver water at a steady rate. This slower application rate allows water to soak in gently at a rate that soils can absorb.
As part of our water conservation programs, we will be recommending the replacement of some spray heads with MP Rotators to achieve water savings of up to 40%.
WATER CONSERVATION MAKES FINANCIAL SENSE
The average price for water in the Seattle Metro area have increased from 50-200% over the past 5 years. WATER RATES ARE THE FASTEST GROWING UTILITY COST IN THE PORTLAND METRO AREA! Water Conservation has great ROI.
Water Savings Summary
Our Water Conservation Technology Recommendations
SAM-PRS Spray Heads
- • Pressure regulation at 30psi
- • Check valve prevents drainage
- • 20-30% water savings
- • 70% leak reduction
MP Rotators
- • Multi-trajectory rotating streams
- • Slower water application rate
- • Better soil absorption
- • Up to 40% water savings