
SP22S Shower Power Booster Pack for Gravity Systems
Boosting showers and taps where both the hot and cold pressures are low
Shop by system
Cold water tank in the loft or an airing cupboard, feeding a hot water cylinder below. It’s the most common setup in older UK homes, flats and HMOs, and it’s the system we’re asked about most. Whichever way yours is behaving, there’s a Shower Power Booster that will help.
6 products

Boosting showers and taps where both the hot and cold pressures are low

Can single boost either the whole house or a single shower/tap. Many gravity systems, only the hot needs boosting

Double boosting taps and showers where the hot is gravity fed and the cold mains fed.

Knowing that every Shower Power Booster in the home is covered for an extra year of Warranty.

Get pumps into a bathroom or the loft without an electrician. Daisy chain multiple 3 metre cables for up to 15 metres.

Can be wired into an electric light circuit or simply switched on/off at a 3 pin socket. Can be upgraded to double boost if required. Can be used for any and all plumbing systems.
Buying advice
On a gravity fed system, the only thing pushing water to your shower is the height of the tank above it. There’s no mains pressure behind the hot at all. That’s why the shower dribbles, why the hot so often feels weaker than the cold, and why it fades the moment somebody runs a tap downstairs.
Whilst you may have been told that a gravity system can’t be improved without ripping it out and starting again, that isn’t the case. The Shower Power Booster was designed for exactly this kind of plumbing. It’s a small pump that fits onto your existing pipework and gives the water the push that gravity alone can’t.
It runs on 12 volts, so there’s no wiring and no electrician, and it’s WRAS approved. That’s the independent approval that says it’s been tested and passed as safe to fit to the water you drink and wash in at home.
Which one you need depends on whether it’s one shower or the whole house, and whether the cold is affected as well as the hot. Take the quiz and we’ll tell you in under a minute.
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