3M Water Filtration System Shutdown and Startup Guide

Man putting chairs on top of tables in a restaurant.
Smart shutdowns. Smooth restart.

Keep your business flowing when it’s open—and help protect your equipment whenever it’s not by following these recommendations.

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Filtration system shutdowns and startups made simple.

  • Performing a proper shutdown of your 3M Water Filtration System is an essential practice to help preserve its functionality and help ensure expensive appliances are ready to go when you restart them back up.

    Please follow the instructions below to ensure consistent performance when the system is returned to normal operation.


3M filter cartridge  A cutaway of a 3M Water Filtration cartridge showing Integrated Membrane and Pre-Activated Carbon Technology (
The science inside matters.

Why is it important to properly shut down and restart your 3M Water Filtration System? Inside your cartridge is our Integrated Membrane and Pre-Activated Carbon Technology (“I.M.P.A.C.T.”). This three stage system provides filtration you can count on to help reduce contaminants that may be in your water—and performing a proper shutdown is a great way to help keep it operating as intended.

  • ● Sanitary Quick Change

    Encapsulated cartridge design allows for fast and easy cartridge change-outs without contamination.
  • Stage 1: Pre-Filtration

    Nonwoven filtration media that reduces larger size particles to help increase sediment holding capacity of the filter.

  • Stage 2: Fine Filtration

    3M proprietary two-zone microporous pleated membrane that reduces 99.99% of protozoan cysts and helps provide excellent sediment life with minimal pressure drop.

  • Stage 3: Final Filtration

    Activated Carbon Filtration; 3M carbon block technology for reduction of lead, chlorine and odor and for improved taste.

4 Simple Steps to Shutdown

  • Closing the inlet valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    1. Make sure the equipment connected to the filtration system is shutdown and close the inlet water valve of the filtration system.

  • Opening the flush valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    2. Open the filter flush valve or downstream valve for a few seconds to relieve pressure in the system.

  • Closing the flush valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    3. Close the flush valve or downstream valve.

  • 3M™ High Flow Series Multi-Equipment Filtration System Model DP290 cartridges remain in place.

    4. Leave cartridges in place installed in the heads.


Restart Steps – For systems decommissioned for less than 6 weeks

  • Opening the inlet valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    1. Open the filter inlet water valve and check for any leaks.

  • Opening the flush valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    2. Flush the system to drain for at least 5 minutes.

  • Closing the flush valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    3. Close the flush valve or downstream valve. System is now ready for use.


Restart Steps – For systems decommissioned for 6 weeks or more

  • Removing and discarding the old filter cartridges of the 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    1. Discard the old filter cartridges.

  • Installing new cartridges into the 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    2. Replace with new cartridges per the cartridge installation instructions.

  • Opening the inlet valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    3. Open the filter inlet water valve and check for any leaks.

  • Opening the flush valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    4. Open filter flush valve or downstream value to flush the system per the filter’s recommended flush instructions included on the Performance Data Sheet.

  • Closing the flush valve of a 3M™ High Flow Series Multi-Equipment Filtration System Model DP290.

    5. Close the flush valve or downstream valve. System is now ready for use.


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