"LindaB" wrote in message
Wouldn't it be wonderful if the building permit system was used so
that the installation of any new evaporative air conditioner
required
the installation of a tank of a certain size to harvest the water
that
was then used on the garden.

Think I will write to my local MP

Good idea. I think I'll write to mine and ask him to lobby to have
the wasteful things banned unless there is a child under 5 or a person
over 75 or a terminally ill person in the house - backed up by a
medical cert or course.