Our most important commodity
As we all know by now, Western Australia has problems with a major commodity. Water. Even though winter is almost upon us
we still need to be careful with this finite resource.
I am sure you have seen the adverts telling us to have shorter showers, but what else can we do?
When we wash our cars we should be turning off the hose in between using the sponge on the panels of the car instead of leaving
With the arrival of rain we no longer need to water the plants as often or for as long as we did in the summer months.
Everyone really knows what should be done so let's get to the point.
The Guilty Party
There is one very large user of water that constantly ignores the advice given by the local government. That use is the local
government! I am forever seeing sprinklers in public open spaces being used between the hours of 9 am and 6 pm. The
exact opposite of what they tell us to do!
Ok, the parks are watered with bore water. Bore water comes from the water table, not from dams like out scheme
water. However, when the shires water through the day, there is a lot of water lost through evaporation. Also, I believe that
we use of bore water lowers the water table which in turn slows the filling of dams by the winter rains.
Then there is the problem of evaporation from the dams themselves. Perhaps we could slow if not prevent the evaporation
by using thousands of sealed plastic floats or balls. Cover the dam with these and they would effectively act like a pool
blanket. This idea would need to be balanced with open surface on the water to prevent the water heating up pro probably
causing algal blooms. This of course is just an idea, but perhaps the boffin's at the water corporation could take this and
develop a workable solution from it. It may already have been trialled or used in other countries. Perhaps we could learn
something from the desert countries of the world such as Oman?
I only know one thing. We need to act now.