At Pi we make some bold claims about the robustness and lifespan of our products. We also have the evidence that back up these claims.

Free Chlorine and pH Monitoring on an 11 Year Old Pool Controller
CRIUS V2 with free chlorine and pH monitoring

Above is a picture of a CRIUS V2 installed at a leisure centre in the UK. Installed 11 years ago, this CRIUS V2 still monitors and controls the chemistry of the free chlorine and pH in two of the leisure centre’s swimming pools with ease. Pi stopped manufacturing the CRIUS V2 in 2015. Despite this, Pi’s service engineers serviced this pool controller in June 2025 to re-program a relay. A relay is an on/off switch to send a signal to an external device, such as controlling an acid dosing pump for pH correction.

When speaking with Pi’s engineers, the pool manager said

“The analyser has been here longer than I have. It runs two of our pools and we are really happy with it.”

Pi now offers the AutoPool®4.0 pool controller that comes with patented MutoDrive® technology as standard. MutoDrive® controls the pool recirculation pump based on bather demand, resulting in much lower energy usage and costs. Click here to view data on how MutoDrive® reduced a local pool’s electricity bills

This is not the only application where Pi’s equipment has stood the test of time. Click here to read about the instrument controller that monitored and controlled polymer dosing in a food and beverage application for a decade. Click here to read how the CRIUS instrument controller was used for over 25 years to monitor and control the process of uranium enrichment.

If you have an application that you would like to be monitored and controlled by robust and long-life equipment that require little to no maintenance, get in touch today.

 

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(VSD) Control to Reduce Swimming Pool Electricity Bills with MutoDrive®

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