How to Install Scalewatcher

FITTING INSTRUCTIONS

3 Simple Steps to a Scale-Free Home

No plumbing experience or special tools required.

 1. Find Your Pipe

The Scalewatcher works on copper, plastic, steel or lead pipes. You only need a 10 cm (4 inches) section of straight pipe.

• Best Spot: Look for your main incoming cold water pipe (usually near your inside stopcock valve). Fitting it here protects your whole house.
• Alternative Spot: If the main pipe is hidden, fit it onto the pipe supplying your hot water heater or cold water tank. This still protects your hot water system, where most scale forms.
• Got Steel or Lead Pipes? Please call our friendly team for quick advice before ordering to ensure you get the right size. 

2. Mount the Box

You can mount the Scalewatcher box in any direction—upright, sideways, or diagonally.

• Wall Placement: Choose a firm wall near your chosen pipe. The box can sit up to 1 metre away from the pipe.
• Power Supply: Make sure there is a standard plug socket within 3 metres. Need a longer reach? Contact us to order an extended power cable.
• Easy Hanging: Use the screws provided in your kit. The box simply slots onto them using the brackets on the back or sides.

3. Wrap the Wire

The wire coil does all the work, and it can be wrapped around vertical, horizontal, or diagonal pipes.

• Wrap It: Wrap the wire tightly around the pipe between 10 and 12 times. Secure each end tightly with the included zip ties.
• Splitting Pipes? If your pipe splits into two sections before you can mount the unit, you can wrap the single wire across both pipes to treat them simultaneously.
• Plug It In: Strip a tiny bit of plastic off the wire ends to reveal the bare metal. Push down the buttons on the Scalewatcher box and insert the wires. Note: It does not matter which wire goes into which button.
• Turn It On: Plug the unit into the wall socket.

Reading the Lights

• Red Light: The unit has power.
• Green Light: The system is working and protecting your home.
• Important: Leave the unit plugged in and switched on 24/7 for continuous scale protection. It uses minimal electricity.

 For the Engineers: How it Works

Want to dig into the underlying science? Our system applies the principles of Magnetohydrodynamics (MHD) via a frequency-modulated signal to change the shape and stickiness of calcium crystals without chemicals.

• Healthy Minerals: Water remains chemically unaltered, preserving healthy drinking calcium.
• 5-Day Charge: The treated non-stick state of the water lasts up to 7 days, even inside your storage tank.

 View the Full Technical Description & Science Report

  Frequently Asked Questions

 Installation & Setup

•  Do I need to turn off my water supply to install it? No, the system fits completely on the outside of your pipes. You do not need to cut any plumbing or turn off your water.
•  Does it matter which way I wrap the wire coil? No, you can wrap the wire in any direction regardless of the water flow.
•  What should I do with excess wire? If your wire is too long, cut off the extra length. Do not leave excess wire dangling or coiled loosely up in a bunch.
• Can I install it next to metal objects? Keep the wire coil at least 15 cm away from large iron or steel objects, such as electrical motors. Normal nearby appliances like washing machines are fine.

How It Works

• Does this change the taste or quality of my drinking water? No, your water remains chemically unchanged. It retains all beneficial minerals and healthy tastes, meaning you do not need to install a separate drinking tap.
• Where does the removed limescale go? The system alters the calcium crystals so they can no longer stick to surfaces. Existing scale slowly dissolves back into the water and safely washes away down the drain in microscopic amounts.
• Will the clearing scale block my plumbing? No, limescale breaks down gradually into a soluble solution, so it will not break off in large chunks or block your pipes.

Costs & Performance

• How much electricity does the unit use? The Scalewatcher is highly efficient. It runs continuously and costs roughly £5-£10 per year in electricity.
• How long does it take to see results? You will notice changes within 4 to 6 weeks. Look out for softer scale around your taps, loose scale flaking out of your kettle, and faster water heating times.

 View Scalewatcher models and pricing

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