Severn Trent Water in appeal over reservoir levels fall
Water company Severn Trent is appealing to people to conserve supplies, with reservoir levels being about 10% lower than normal for this time of year.
It said in some cases it put reservoir levels "slightly under target".
The weather throughout March and April was exceptionally dry, the firm added.
It said although there had been rain and more was forecast, it would take "more than a few showers" to ensure reservoirs levels during summer.
Martin Kane, customer relations director, said: "More rain isn't a popular idea but it is what we need, preferably spread over several days and weeks, so the reservoirs across the region can top up.
"The more steps we can all take now - both as a company and as individuals - the better placed our water supplies will be if dry, hot weather continues.
"Things you can do to help the situation include choosing showers rather than baths, fixing dripping taps, using the dishwasher only when full, and resisting the temptation to use a hosepipe or sprinkler on the garden or for washing the car."