The SwimDrive with built-in vector control allows total control over the pump and therefore the water flow. In spas, hot tubs and whirlpool baths the efficient single All-In-One-Pump™ replaces the 24/7 cycle pump, the filtration pump and the jet pump with simplified pipe work. The 2.5 inch (63.5mm) diameter of the SwimDrive heat exchanger does not restrict the passage of water through it and can be connected to any pipe diameter between 1 inch (25.4mm) and 2.5 inch (63.5mm) using suitable union fittings.

The water that flows through the SwimDrive inverter cools the inverter even when the flowing water temperature is 40°C and the recovered heat energy is collected by the flowing water. This heat energy recovery helps to reduce the water heating cost.

+44 (0)2920 344 150

   Product Features

  • Fully variable water flow through spa jets
  • Gentle speed variation for smooth water flow
  • In-line water cooling and recovery of heat energy
  • Recovered heat energy transferred to the flowing water
  • Pump does not overheat throughout its speed range
  • No water flow restriction through the SwimDrive Inverter
  • Built-in active power factor correction allowing higher efficiency than other standard variable speed drive inverters
  • Automatic detection and shutdown if pump stalls
  • The need for multiple pumps is reduced
  • Interfaced using RS485 for custom control models
  • Variable speed is also achievable using 0 to 10 volt input
  • Quieter operation at slower speeds
  • Built-in electrical noise filtering
  • Suitable for spas, swim spas, hot tubs, swimming pools, whirlpool baths, marine applications, water features and more.


The global increase in energy demand and the debate about climate change have placed power engineering technology in the spot-light and at the forefront of discussions. New technologies in this sector are being researched in order to effectively and efficiently use the available resources. In water circulation and pumping applications in spas, hot tubs and whirlpool baths, where there is a large dynamic water head (frictional losses due to water flow in pipe work), significant energy savings can be made by using the vector controlled variable speed drive employed in SwimDrive. In all these applications the power consumption is proportional to the cube of the motor speed, commonly referred to as a ‘Cube Law’. According to this, even at a modest reduction in pump speed with SwimDrive, the energy savings become significant.