average rainfall is around 790 mm. a year. The pattern is for high
rainfalls from May to August- almost 70% of the year's total rain
in four months.
how to calculate how much water you can collect from your roof.
Take the number of square metres of roof, muliply by the number
of millimetres of rainfall, to give the number of litres. e.g. If
you have 150 square metres of roof, and the average Perth rainfall
is 790mm, then you could collect over 110,000 litres a year.
rainfall would yield 1500 litres! In both cases, it's safest to
subtract 10% to allow for absorbtion, evaporation etc.
Perth, it certainly makes sense to have a water tank installed in
time to catch the heavy rainfalls mid-year. Then you're ready for
those long, hot, dry summers!
your information, here is the official Perth monthly average rainfall
graph, together with the average number of rain days, supplied by
the Bureau of Meteorology.
you live in Perth (or elsewhere in Western Australia), we'd like
to help you with your water tank requirements. Learn more at our
Water Tanks page.
about a water tank- your own, personal water supply? Visit our
Tanks for Perth page.
enviro-friendly tips and news, be sure to
and please, tell your friends about us!
Enviro-Friendly today on (02) 6282 6266, and find out how we can
"Save water, save energy, save
money, and save the environment."
information provided in good faith- E&OE
Services by Underdog Marketing
Address Only: 13 Finnerty Place, Kambah (Canberra) ACT 2902 Australia