Why Shower Pumps

Why shower pumps

Whether it’s to address inadequate water pressure or simply to create a more exhilarating shower experience, Grundfos has a pump for you. All Grundfos shower pumps conform to both European and UK standards, including UK WRAS product approval, are backed by a comprehensive manufacturer’s warranty and are supported by a Customer Service Department and Technical Helpline that are second to none.

Single impeller pumps are generally used to boost the pressure of cold water supplied to a combi boiler (SSR or Amazon series) or unvented cylinder (Amazon), whilst twin impeller pumps are used to boost the pressure of hot and cold water to a single shower (STR or Amazon series), multiple showers or a whole domestic house system (Amazon). For larger installations such as showers in a sports facility, an Amazon EXTRA single impeller pump would be placed on both hot and cold feeds and integrated with thermostatic shower valve protection. Use the Shower Pump Selector tab for a step by step selection guide.

A shower pump should be sited as close to the hot water cylinder as possible, however, if the shower pump is fitted in the loft or above the hot water cylinder (minimum static head required), please see Pump Location tab for example installations.

STR2 / STR2 Universal

  • Low noise design – quiet induction motor and minimal turbulence pump head
  • Continuously rated
  • Supplied with 22mm Stainless steel hoses
  • Fitted with long-life seals
  • Twin (STR2) & Single (SSR2) impellers
  • WRAS Approved
  • IPX2 water ingress protection
  • Regenerative impeller designed to overcome air pockets
  • Positive and Universal head available
  • 2 Year Warranty

Ideal to use when boosting…

  • Hot / Cold Taps
  • Single Shower / Bathroom applications

Amazon / Amazon Universal

  • Low noise design – quiet induction motor and minimal turbulence pump head
  • Continuously rated
  • Supplied with 22mm Stainless steel hoses
  • Fitted with long-life silicon carbide seals
  • Twin (STP) & Single (SSP) impellers
  • WRAS Approved
  • IPX2 water ingress protection
  • Regenerative impeller designed to overcome air pockets
  • Premium brass pump head and impeller
  • 5 year warranty (domestic use only)

Ideal to use when boosting…

  • Single/multiple showers
  • Whole House applications (Gravity)
  • Combination boilers (From cold water store only, see pump location diagrams)

See our videos below to see the benefits of a Grundfos shower pump.

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