Every Billi tap works hard to deliver instant boiling water on demand. But without a proper scale filter, minerals in the water can quickly build up inside the undersink unit. This leads to reduced capacity, slower heating times, and even damage to the heating element. Installing a Billi scale filter is the easiest way to protect your tap, extend its lifespan, and keep performance at its best.  

Getting Started

Before you begin, check whether your Billi tap already has a filter head installed. if it does, you only need to replace the cartidge. If not, you'll need to purchase both the Billi scale filter and the filter head to get started. Make sure you choose the correct size filter (either medium or heavy-duty) based on your water hardness and usage levels. 

Step-by-Step Installation

  1. Turn off the water supply - locate the isolation valve connected to your Billi system and switch it off to prevent leaks
  2. Release the pressure - Open your Billi tap and run it briefly to release any pressure inside the system 
  3. Remove the old filter - Twist the existing filter cartidge anti-clockwise until it unlocks and pulls free from the head. If this is your first installation, skip this step. 
  4. Fit the new filter - Take the Billi scale filter out of its packaging, align it with the filter head, and twist it clockwise until secure. You'll hear or feel a click when it's properly locked in place. 
  5. Turn the water back on - Slowly reopen the isolation valve to allow water to flow into the new filter 
  6. Flush the system - Run your Billi tap for a few minutes to flush out any air bubbles and ensure the new filter is primed. 

For extra guidance, you can also watch this video on how to change a Billi filter. This visual guide makes the process even easier and shows you exactly what to expect. 

Keep Your Billi Tap Running Smoothly 

That's it! You've successfuly installed your new Billi scale filter. The whole process takes just a few minutes and requires no specialist tools. For best results, replace your filter regularly based on your water quality and usage. By keeping on top of filter changes, you'll ensure your Billi tap always delivers fresh, boiling water while staying fully protected against scale build-up.