"Simon Harding" wrote in message
...

To be honest, it's surprising how quickly 2000L will go in a dry spell.

In that recent warm spell we used two sprinklers to water a large area of
new turf we had just laid in the back garden. The two sprinklers emptied our
4000L tank in about 3 hours. When the water ran out I thought the pump had
died!

Later I realised that I should have expected it....A bathroom shower can use
10-20L/min which is 600-1200L per hour.