Irrigation Water Management Services for the Seattle region
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The Daily Irrigation Index and Weekly Watering Forecast

The daily index and weekly forecast are currently under review. No emails are being sent with information related to the daily irrigation index or the weekly watering forecast. Other useful tools include:

  • the sprinkler calculators
  • conservation controller tips
  • the Seattle area info

About our website

IWMS provides simple tools to improve the efficiency of automatic irrigation systems.  Brought to you by the Saving Water Partnership and Seattle Public Utilities.

Irrigation Controller/Clock Water Saving Features & Tips

To help save water and keep plants healthy, learn how the water saving features on common irrigation controllers work.  

Read more...

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