Whole House Twin Rain Water Filter Cartridge Replacement Guide [VIDEO]

Replacing Cartridges Is Easy!

Just turn off the water supply, unscrew the cartridge housing, remove the old cartridge, ensure the housing is clean and the seal is in good condition.

Once that is done, slip the new cartridge into the housing and screw it back into place.

How To Change The Cartridge In Your Whole House Twin Rain Water Filter System

Whole House Filter Replacement: 

  1. Turn the main water supply off.
  2. Turn on the tap to empty the water from your pipes and remove the pressure from the system.
  3. Use the cartridge removal tool to crack the seal, and unscrew the housing.
  4. Take out the old cartridge.
  5. Make sure you insert the new cartridge with the hole meeting the riser at the bottom of the housing.
  6. While keeping the housing straight, carefully screw the housing into the socket. Use the cartridge removal tool to tighten up the housing.
  7. Turn the main water supply back on and give your water filter a flush for five minutes before using or consuming the water in your home.
  8. Go inside and pour yourself a nice glass of water. See if you can taste the difference.


Note: To make the removal of your housings easier, apply some grease to the thread of each housing.

If you have any further questions please contact us, we’d be happy to help.

Click here to check out our full range of Whole House Water Filters.

Big Blue Water Filter Replacement Cartridge

This Cartridge Pack Can Be Used With:

Why Buy A Cartridge Pack?

When you buy cartridges in bulk, you save your time and money on transport costs compared to buying cartridges individually. Not only will you have both the cartridges you need in one go, you will also enjoy the benefits of drinking fluoride free water all year long.

Buying cartridge packs not only saves you money but it saves you time on multiple deliveries.

We provide free delivery for our cartridges and what’s more, you get a 30 day money back guarantee.

Automatic Cartridge Replacement Service.

When you invest in a water filtration product from My Water Filter, we like to ensure you have the best experience possible. We like to lend a hand & take care of you as best we can.

We happily monitor the cartridge life for you When the cartridge is due for renewal, we then contact you Once confirmed, we arrange everything and have a new replacement cartridge delivered to your door.
Note: To make the removal of your housings easier, apply some grease to the thread of each housing.

Category-rain water tank filtersCategory-water filter cartridgesType-cartridge replacement and flushing guides