How to Change Filters in Your Undersink System

Undersink Filter Change Instructions

Changing & Flushing your New Filters 

Tools needed:

  • Bucket
  • Spare piece of tubing with an elbow fitting on one end (included with your filter order)

 

 Changing the filters:

A few tips before you get started:

• Before you begin, turn the water OFF  where water enters the UF system (blue and white shut-off valve - turn blue knob clockwise 90˚) and turn your filtered water faucet at the sink ON. Turning the faucet on will release the pressure so you can remove the fittings easily.

• You can leave the water on at the sink faucet throughout the whole filter changing and flushing process. You will only be turning the water on and off where the water enters the filtration system.

• When removing the old filters, only disconnect the fittings from the filter ports, don’t remove the tubing from the fittings.

• If you installed your system so the filters are in a vertical position, remove the top fitting of the filter first and put your finger on the filter hole during removal of the bottom fitting - this prevents water spillage.

• The filters will alternate pointing up and down when installed correctly.

 

Flushing the Filters:

  1. With the water OFF where water enters the system and the filtered water faucet turned ON at the sink, remove the elbow fitting from the outlet of the Pre Carbon filter and attach the spare fitting/tubing that came with your filter set.
  2. Turn the water ON and flush about a gallon of water into your bucket and then turn the water OFF. The water may come out black at first, this is completely normal. 
  3. Remove the spare elbow fitting and tubing from the Pre Carbon filter and reattach the original fitting.
  4. Make sure all fittings are securely connected and turn the water back ON. Allow about a gallon of water to run through the filter faucet at the sink and then you are finished.

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