Install Your Shower Power Booster in 3 Easy Steps
The Shower Power Booster has been designed for straightforward installation on 15mm or 22mm pipework. Choose a suitable position, connect the pump and plug in the power supply.
- No electrician normally required
- Reducers included for 15mm pipework
- Suitable for several installation positions

Three Steps to Better Water Flow
Always isolate the water supply and read the full instructions before starting.
Choose a Location
Select an accessible section of pipework where the pump can be fitted securely and the electrical lead can reach the power supply.
See suitable pump positionsInsert the Pump
Cut the pipe, fit the supplied compression connections and tighten while supporting the pump body with a second adjustable spanner.
Avoid compression joint leaksConnect the Power
Restore the water supply, check all joints and then connect the pump to its supplied power unit. The LED will confirm its operating status.
View wiring videosEverything You Need for a Simple Installation
The compact inline design gives you flexibility when choosing where to fit the pump.
15mm & 22mm Pipework
Fits common domestic pipe sizes, with reducing sets supplied for 15mm installations.
Flexible Positioning
Install the pump wherever access, pipework and available space make fitting easiest.
Reducers Included
Each pump includes a 22mm to 15mm reducing set for standard 15mm pipework.
Plug-in Power Supply
The low-voltage pump connects to its supplied power unit and a suitable mains socket.
No Specialist Equipment
Installation uses familiar compression fittings and standard plumbing tools.
Installation Notes & Safety
Before Installation
- Isolate the water supply before cutting any pipework.
- Check the flow arrow on the pump matches the direction of water flow.
- Use pipe inserts when connecting to plastic PEX pipe.
- Make sure the pump and electrical connections remain accessible.
After Installation
- Restore the water supply slowly and inspect every joint.
- Run the outlet and allow trapped air to clear.
- Connect the pump power only after checking for leaks.
- Confirm that the LED responds correctly when water begins to flow.
Understanding the LED Indicator
Once connected, the LED on an SP2B indicates whether the pump has power, is detecting water flow or requires attention.
Full Installation Instructions
Open the current installation page while we confirm the final downloadable guide file for the new site.
Installation & System Videos
Select a system below to watch a practical Shower Power Booster video.