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An innovative solution to detect potential flooding risks with United Utilities

Our team have been working closely with United Utilities to install over 1,700 HWM sensors across our network which will monitor water levels in real-time and alert our Operatives to potential flooding risks.

The HWM sensors are designed to detect changes in the water level that may indicate a risk of flooding or an unexpected rise in water levels. When alerted, our Operatives can take immediate action to reduce the impact of any potential flooding. The system is also designed to be flexible enough so that it can be adapted for different geographical areas with differing flood risk profiles.

United Utilities’ customers will now receive a much-improved service from this new monitoring system as it allows for better prediction and response times when dealing with potential floods. The sensors are being installed in United Utilities’ districts throughout Lancashire, Manchester, Merseyside, Cumbria and Cheshire and we aim to install another 550 sensors in 2023.

The HWM sensor is connected to a logger which stores all the data that is picked up by the float sensor placed above the channel. The logger also notifies our Operatives if there is an issue with the sensor or if it loses signal and goes offline. In addition, the app we use on our tablets allows for gathering of data surrounding each manhole such as construction material, depth and entry size as well as location details. Photos can also be taken during installation for further monitoring purposes.

We have been working closely with United Utilities over the past year in order to provide effective solutions to flooding and water level issues. This new system is part of a larger effort to make sure that the region’s water infrastructure remains safe and reliable for all customers. With another 550 HWM sensors still left to install, we are continuing our commitment to providing the best quality services in managing flooding risks.

Installing the bar into the chamber, ensuring it's low enough so the cover can go back on without touching the unit.
Tightening the bar with use of 19mm spanners, making sure its fully secure and there is no chance of it falling down the chamber.
HWM Logger Box and Spill Sensor.
Lowering the float sensor down t1490-o the crown of the pipe and then securing in place with cable ties.
Securing data logger to the bar.
Preparing the antenna.
Installation complete. Waking up the logger via use of a magnet.
Carrying out signal test via HWM IDT app.