Southern Water manages water pressure across key parts of our supply network to help maintain a consistent and reliable supply and reduce the amount of drinking water lost through leakage.

Low pressure can reduce water flow, meaning it takes longer to fill a kettle or a toilet cistern. High pressure can increase leakage and the number of repairs we undertake on our pipes. By managing the pressure in these pipes it is possible to save water and prevent disruptions to supply.

Managing water pressure normally involves lowering pressures at night, when demand is low and pressures are generally at their highest. However, it can involve increasing pressures during times when demand is high and pressures are normally at their lowest.  Pressure is continually monitored to ensure that suitable pressure is maintained.

Pressure management is part of our Water Resources Management Plan, which aims to safeguard future water supplies, improve water quality and protect the environment.

To find out more, including advice for customers on how you can maximise the pressure that you receive, see our fact sheet.