Sentinel and Wakefield District Housing drives water quality improvements

WDH is one of the UK’s largest social housing providers, responsible for over 31,000 homes in the Wakefield district. One of their four ambitions to 2020 centres on delivering customer excellence. However, when we first met with WDH their central heating water quality had been affecting them negatively in this area

Working closely with WDH we were in a position to look carefully at the issues they were having with increased engineer visits and product breakdowns year on year.

Our Service

With the support of Sentinel, Wakefield District Housing took a sample of the system water from 934 of their properties to get a snapshot of how their estate was being affected by poor water quality. These tests took place during the annual service of the gas boiler.

The resulting data (Fig 1.) shows that of the 934 properties over 50% of systems tested did not have the correct inhibitor levels if any.

Of the 52% of systems that failed the required inhibitor levels, 23% also had degrading or poor visual results that already demonstrated signs of corrosion.

Looking at October 15th to September 16th 2017, WDH attended 1134 visits surrounding water treatment issues.

Our Goals

Working with WDH we put a water treatment training program in place as well as a service procedure with turbidity tubes (used to quickly analyse the cleanliness of a system) and X100 Inhibitor Quick Test kits to identify any water treatment issue before it becomes a problem. With our help, WDH is aiming to reduce central heating failures by 30%. When factoring in parts spend and engineer wages our program can create a saving of £36,405 against the previous spend whilst eliminating 341 visits per year.