Determine the minimum distance $($in $m)$ a pump should be located below the water surface elevation $(Zs)$ in order to avoid cavitation. The total friction head loss $(hLf)$ is $0\mathrm{.}04$

meters, and the sum of all minor losses is $0\mathrm{.}2$ meters. The atmospheric pressure is $101$kPa and the water vapor pressure at $20C$ is $2\mathrm{.}3388$kPa. The pump required net positive

suction head $($NPSHR$)$ is $15$ meters.