it may be amended.
what are the defecto?
Feritly : There is not sufficient impounding space for the quantity required.
Secondly : The Conduct pipe is not of exfficient.
size
to deliver the requisite quantity at the
Service Tanks.
Thirdly. The Service Tanks themselves are too low- to give the necessary head to the service
Mairis.
Fourthly : The Service Mamis are
defectively - laid with reference to the district they
: serve.
In
chowing how these defects can be amended - I will take their seriaturi- and the first question to be enquired into is the unmpounding space required.
Toke population to be supplied is 90,000. the rate of daily supply is 30) gallons per head and the longest period of drought 2440 days (this actually occurred - during my stay in the Colony) for this pervil
therefore 450,000,000 Gallons
are
required.
It must be borne in mind that in
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designing works of this nature times of les'. I excessive drought must be providect for -
more particularly in a city circumstanced as Victoria is - for owing to the heavy falls of ram during the rainy season_ the sheams from the hill sides alone provide water enough in quantity without artificial aid. but the want is felt so much the more severely when these streams are dried up as it is their that such artificial und alone can the requisite supply.
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7
a give
In calculating the actual proportions of the ramifall which may be dependect upon for strage - allowance, must be made for Abrorthon Evaporation Percolation and to the highest other losses which ac
according authorike's amount to about two thirds of the fall. This leaves but one third available. The beast fall of ram as hitherto recorded. has been 56 wiches - and therefore 19 wiches only can be reckoned upon as available for storage. This on the Pokfoolum gathering ground of 396 acres gives about 170,000, v o o gallons - which is but a very small porteir
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