WRAS Approved Approved components
UK Designed Designed in Britain
3 Year Warranty* Product protection

SP2B: Shower Power Booster for Gravity Systems

£143.00
Product Overview

The Shower Power Booster SP2B  can be used to single boost either the whole house or a single shower/tap. In many with gravity hot and cold and also with gravity hot and mains cold, only the hot needs single boosting to get a good shower or tap flow. You can later add an upgrade pump to a SP2B to give you a SP21S or a SP22S if you need more power.

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SKU: SP2BG

Description

If you’re struggling with showers and taps with low water pressure throughout your home, or notice that a shower loses pressure when a tap or toilet runs, and you have a gravity system, then the SP2B is likely the best pump for you. In homes with a cold water tank in the loft then just boosting the hot is the solution (unless you know the cold pressure to be weak as well).

If your home is a flat or a room in a HMO you may have a close coupled tank or a Fortic tank. A SP21S or a SP22S is recommended for such homes.

Whilst you may have been told your only options are a bulky, expensive power shower or a new system, there is now a simpler DIY fix. In most homes it’s only the hot that’s lagging behind, so a single pump on the hot feed is all it takes to get up to four times the pressure and twice the flow.

  • DIY install in 3 easy steps
  • Simplest way to boost showers & taps
  • Completely automatic operation
  • No Cylinder Shower Pump Flange – Works at Any Angle
  • Safe 12V DC – no electrician needed!
  • Unique patented & award-winning design
  • WRAS Approved & British designed & made

Other applications for the SP2B include:

Contained in box:

  • 1 x Fitting Guide & instructions
  • 1 x Fitting attachments for 22mm or 15mm diameter pipe
  • 1 x Power supply 3.0 amp
  • 1 x Shower Power Booster automatic water pump

Q: Do I need to boost the cold as well?

A: Usually not. In most gravity homes the cold is fine and it’s the hot that lags. If your shower also fades when a toilet flushes or a cold tap runs, that’s the sign both feeds need help — that’s the SP22S. We recommend to most people who call us that they start with the SP2B, if they find they need more boost, we offer an upgrade – contact our team for more information.

The SP2B for gravity systems is a WRAS-approved automatic booster pump that fits on the hot water pipe, after the vent pipe. In most gravity homes only the hot needs boosting — the cold usually holds its own — so one small pump on the right pipe transforms the shower. Fit it on the main hot feed and it boosts every hot outlet in the house; fit it on a single shower’s branch and it boosts just that shower. Around 8 in 10 gravity-fed customers need nothing more than this one pump.

This automatic pump detects flow and starts by itself to boost the whole house or to protect and boost an individual shower or tap.

 

A Shower Power Booster is available as a single pump or in bundles of two pumps.

A ShowerPowerBooster will boost any and all systems but it is particularly useful in boosting gravity and mixed gravity systems where existing pressures are low. It will not impeded flow should there be a power cut.

The SP2B is a fully automatic pump and a single pump will be effective for most applications but we recommend that you buy a SP21S double boost or a SP22S for boosting hot and cold for some applications (click on links below).

Gravity Hot & Cold Systems

Gravity Hot & Mains Cold Systems

Negative Head Systems

Boosting Kitchen Taps

Single, Double, & Triple Boosts

Fitting Pumps in Lofts

Boosting Showers & Taps in Hotels

Detailed drawings and instructions are in the booklet sent with the pumps but you can download  the online version of this guide from our website

ProductBrandShower Power Booster
ManufacturerFlowflex Components LTD
General3 Year Warranty (2 years without SPB Ultimate Care Pack)
30 Day Return Policy
WRAS Approval - 2002802
FeaturesPump TypeCentrifugal with Brushless Motor
Inlet Filter✔
Dry run protection✔
Waterproof✔
MaterialsBodyBrass - BS6282-5
PumpPlastic
PhysicalLength150mm
Width45mm
Height125mm
Weight625g
Pump Connection22mm or 15mm Compression
Maximum Head5.2m to 6m
PerformanceTypical Output5 L/Min @ 3.2m
Max Sustained Pressure4 Bars
Max Sustained Temperature65 - 85°C
Min Flow Rate1.5 L/Min
Max Flow Rate9 L/Min
Transformer12 Volt (1.5 amp or 3.0 amp)
ElectricalInput100 - 240 Volts 50/60Hz
Output12 Volts DC
Power Consumption12.6 Watts @ 5 L/Min
Fuse Rating3 Amp
Power Cable3 Pin Plug with 1m AC Cable Male DC Plug with 1m DC Cable

 

Contained in the SP2B Box:

  • 1 x Fitting Guide & instructions
  • 1 x Fitting attachments for 22mm or 15mm diameter pipe
  • 1 x Power supply 3.0 amp
  • 1 x Shower Power Booster automatic water pump