Water Catchment in Litres
Annual Rainfall
Roof Area
(sq/m)		 250mm 500mm 1000mm
36
9,000
18,000
36,000
50
12,500
25,000
50,000
100
25,000
50,000
100,000
150
37,500
75,000
150,000
200
50,000
100,000
200,000
300
75,000
150,000
300,000
400
100,000
200,000
400,000
500
125,000
250,000
500,000
Loch Sport
Water Catchment Page
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This Page updated on 15 December 2025