Sheldon and Leonard come home from a long day of studying to discover that their basement is flooded with water. They have a submersible pump for such an emergency and connect the pump discharge to a 12-ft-long garden hose, as shown in Fig. P8.99. The garden hose may be considered a smooth plastic pipe with a 1.0-in. indside diameter. If the initial water depth is 6.0 in. and the pump has an input power of \(0.25 \mathrm{hp}\) and an overall efficiency of 0.60, how long will it take to pump out the basement? The pump inlet piping length is negligible, and the garden hose outlet is \(7.0 \mathrm{ft}\) above the basement floor.

Figure P8.99

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h = 7 ft h = 6 in. 36 ft 24 ft