The impact of the pumping will be barely noticeable

United Utilities was granted an order to pump the extra water from the lake after drought measures were given the go-ahead last month.

The Department for Environment, Food and Rural Affairs (Defra) granted the drought order after one of the driest years on record.

Thirlmere reservoir is still only three-quarters full, and Haweswater nudging 90%, despite recent snow and heavy rain.

United Utilities said it wanted the reservoirs to be brim-full by summer.

Water saving

The annual limit which normally applies on Windermere will be passed within the next few days and the and the order will come into use.

However, with the lake high and rivers in spate because of heavy rain, it is unlikely anyone will notice.

United Utilities customer service director Gary Dixon said: "The drought measures will enable us to take action, if necessary, to help our key reservoirs, Haweswater and Thirlmere, recover after an exceptionally dry year.

"We have had some wet weather over the past few weeks, but our reservoirs are still well below normal for this time of year.

"It is important that customers continue to play their part by using water wisely.

"Simple steps like turning off running taps and taking a shower rather than a bath can all make a difference."