Residential Sprinklers



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Residential Sprinklers

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A residential fire sprinkler system is basically maintenance free. The only testing required on a regular basis is opening the drain/test valve to check the alarm operation. The rest of the system is designed to operate properly for 20 years or more without any maintenance.

Some basic precautions to safeguard your fire sprinkler system are:

  • Avoid painting or otherwise covering the fire sprinkler devices, as that will affect their sensitivity to heat.
  • Do not hang decorations, plants or other objects from the sprinkler or piping.

It is Recommended that You Conduct a Water Flow Test About Once a Year

You can do this yourself or a sprinkler contractor can do it for you.

To do a water flow test:

  1. If your sprinklers are connected to a central alarm, inform the fire department that you are going to do a test.
  2. Find your water flow test control valve. It may be labeled main drain, inspector test or test and drain.
  3. Slowly turn the control on (bring the valve in line with the pipe).
  4. This action will allow water to flow. Let the water flow for about 60 seconds. If your system has an alarm, you will hear it.
  5. Slowly turn the control off (the valve will make a corner to the pipe).
  6. Write down the date you tested your water flow test valve.





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King County Fire District #40 * 18002 108th Ave SE, Renton WA 98055 * 425-255-0931 *