Question: A pump with a 1 in. diameter suction line is used to pump water from an open hot water well at a rate of $15

A pump with a 1 in. diameter suction line is used to pump water from an open hot water well at a rate of $15 \mathrm{gpm}$. The water temperature is $90^{\circ} \mathrm{C}$, with a vapor pressure of $526 \mathrm{mmHg}$ and density of $60 \mathrm{lb}_{\mathrm{m}} / \mathrm{ft}^{3}$. If the pump NPSH is $4 \mathrm{ft}$, what is the maximum distance above the level of the water in the well that the pump can be located and still operate properly, i.e., without cavitating?

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