Southern Water: Which postcodes in Hampshire have been affected by a loss in supply and why?

A water bottle station in December during issues with water supplies. Credit: Library picture

Homes and businesses in parts of Hampshire have been left with no water or low pressure following an issue at a supply works.

Postcodes in south Winchester and Southampton experienced a loss in supply on Wednesday night (15 February), with the issue expected to take 48 hours to repair.

Southern Water has apologised for the disruption and says engineers have been working through the night to resolve the issue.

In a statement the company said: "We are doing everything we can to reduce the number of customers who are impacted and to get those without water back into supply quickly.

"Unfortunately, it’s likely that if you are currently without water, this will continue until at least the weekend."


Which postcodes are affected?

In response to a customer's query, Southern Water said the following postcodes are likely to be affected: SO15, SO16, SO18, SO19, SO21, SO22, SO30, SO31, SO32, SO50, SO51, SO53

Why has this happened?

The water company says that the loss in supply or low pressure is due to a failure at its water supply works in Otterbourne.

Where are the bottled water stations?

Places Leisure, Eastleigh, SO50 9NL

The Ageas Bowl, North Entrance from Botley Road, SO30 3RS

Cantell School, Southampton, SO16 3GJ


Customers are urged to consult the company's website for locations.

Vulnerable customers will be put on Southern Water's priority services register, and will have their bottled water delivered to them.

Anyone with concerns is asked to call 0330 303 0368.

In a statement, a Southern Water spokesperson said “We’re sorry for the distress and disruption customers in the south Winchester and Southampton area caused by no water or low water pressure. 

"An operational failure at our Otterbourne water supply works is affecting our ability to supply water. We are doing everything we can to reduce the number of customerswho are impacted and get those without water back into supply quickly.

"It’s likely that if you are currently without water, this will continue until at least the weekend.  

"We’ve started deliveries of bottled water to our most vulnerable customers on our priority services register.  

"We are also setting up bottled water stations in the area and will announce the locations of these as soon as we can on our website, Facebook and Twitter channels."

In December last year, thousands of Southern Water customers had their water supply restricted just days before Christmas.

The company explained leaks after freeze/thaw meant there was "significant pressure" on the network so supplies were turned off to help recovery.