Werewolf said:From memory heavy rain over a short period of time is not as good as lighter rain over a prolonged period of time.
The reason is that heavy rain tends not to have time to settle into the ground (see my comment about floodplains), and tends to largely go straight back out to sea etc.
Lighter rain over a longer period has a chance to soak into the ground and get absorbed, thus working it's way into the water table.
This is correct Also as VIRII said, demand has been steadily rising for years but the supply has not kept pace. Of course the water companies cannot make it rain more, but they could increase the supply of reservoirs and upgrade their infrastructure to reduce leakage (which they are apparently doing). Demand for water - and enegry - is high and supply is tight, which is why it's so expensive. This is one of the things that people who advocate mass immigration don't always consider... if you add millions of extra people into the country then they all need water and power. Our population has been rising for years and is set to go on rising sharply.