Question

Bob's family is going "Green", he sets up water barrels to catch the rain coming off his roof through the gutters. Bob wants to use only rain water for all his water needs (assume he uses this water for all his water needs, he would not, but assume he does). Bob's roof has an area of 2,000ft^2, Bob's family uses 100 gallons of water per day (typical household use).

A.) Approximately how much rain must Bob get at his house per month in order to meet his water needs? Answer should be in inches of rain per month.

B.) In a typical year Florida gets around 60 inches of rain, what volume of water will Bob get in a typical year of rainfall in his rain barrels, units of gallons of water (assume they do not overflow)? Will Bob get enough water for his needs?

States all assumptions and show all work.

Answer 1

Sol) A) Water needed by Bob in one month is gallons = 11.356 m² = 30x100 - & we can 3000 write C Rain in one month) ( Area of roof) - v Area of Roof 4200 oft2 2 185.806 ms - 0.06 111 m Rain : v= 11.356 m 185-806 me (B) Rain, orobilim - (2.406 inches per month Rain in one month Goinches a 1-52um Area of roof - 2000 ft2 = 185.8061me Total volume of water collected - (Rain) (Area) = (1+524) (185.8061 ) ma v=283-1685 m3 Converting to gallons Nr 74805-204 Gallons water needed in one year = 1200 gallons, Bob will get more than enough. Aqua , Mumbai 400093. India Consumer Care Cell: Manager, address as above, snager, betres as above. U . No mellor

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