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How do you bypass a water filtration system?

Published in Water Filtration 2 mins read

To bypass a water filtration system, you generally close specific valves to redirect water flow, effectively removing the filter from the water line. According to the provided reference, here’s how to do it:

Steps to Bypass a Water Filtration System

The reference provided explains bypassing using a system with numbered valves:

  1. Identify Valve Locations: The system has multiple valves numbered for easy identification.
    • Number one is typically the inlet valve to the water treatment system.
    • Number three is usually the outlet valve from the water treatment system.
  2. Close Valve Number One: To begin the bypass, you must first close the number one ball valve (the inlet). This shuts off water going into the filter system.
  3. The Water now flows directly to valve number three which exits the filtration equipment.: This is now bypassing the filter.


Example Using a 3-Valve System

Valve # Position Before Bypass Position During Bypass
1 (Inlet) Open Closed
2 (Bypass) Closed Open
3 (Outlet) Open Open


Why Bypass a Water Filtration System?

  • Maintenance or Repair: Bypassing allows you to perform maintenance on the filter without disrupting the water supply.
  • Troubleshooting: If there's an issue with the filter, bypassing can help isolate whether the problem is with the filter or elsewhere in the system.
  • Temporary Removal: You might temporarily want to bypass the filter if you're using water for a non-critical purpose, such as watering the garden, and want to preserve filter life.


Important Considerations:

  • Valve Configuration: Your system might have different valve configurations. Always identify and understand the function of each valve.
  • System Manual: Refer to your filtration system's manual for specific bypass instructions.
  • Professional Help: If you are uncertain, always consult a qualified plumber.

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