Choosing a Shower Pump

What do you want to power?

Are you looking to improve the power to just one shower? A whole bathroom?  Or the whole house?

We’ve grouped the pumps in our range into ShowerBoost , BathroomBoost  and HouseBoost  to help you decide which you need. It’s worth bearing in mind that you can use a HouseBoost or BathroomBoost pump to power a shower; this is often required when you have a large shower head or body jets.

What type of heating and hot water system do you have?

There are 3 main types of hot water system used in the UK, as described below:

Gravity Fed System                                                      Combination Boiler System                                          Unvented System

Most of our pumps are designed to work with a gravity fed system, apart from HomeBoost  which works with a combi system directly on the mains water.

If you are in doubt about the type of system you have or if you have an unvented system, give us a call on 0191 516 2002 and we can talk you through some solutions.

Where is your cold water storage tank in comparison to your pipework?

For gravity fed systems only, the gap between the bottom of your cold water storage tank and the highest point in your pipework determines whether your system is positive or negative head.

Installers will be able to tell if you need a negative head (usually referred to as a universal) pump or a positive head pump. However, if you are looking to buy before you speak to an installer, here is a guide to what the difference is:


Universal (negative head) pumps will also work in a positive head system, so if you are unsure go for a negative head version, or give our tech desk a call on 0191 516 2002.

What is the size of your shower head?

A bigger shower head is going to need a more powerful  pump.

A rough guide is:

Shower Head diameter Bar pressure
up to 5cm 1.5 bar
5-10 cm 2.0 bar
10-12.5cm 2.5 bar
More than 12.5cm 3.0 bar


We also have a handy pump selector tool on this site - click here - to access it and answer a few questions to get our recommendations of the best pumps for the job. If you are still unsure of your choice of pump, give our Pumpwise team a call on 0191 516 2002 and they'll be able to make sure you make the right choice every time.


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