এখানে, $m = 5000 \text{ gallon} = 5000 \times 4.539 \text{ kg} = 22695 \text{ kg}$, $h = 36 \text{ ft} = 36 \times 0.3048 \text{ m} = 10.97 \text{ m}$ এবং $t = 3600 \text{ s}$। প্রয়োজনীয় ক্ষমতা, $$ \begin{aligned} P &= \frac{mgh}{t} \\ &= \frac{22695 \times 9.8 \times 10.97}{3600} \\ &= 678.15 \text{ W} \\ &= \frac{678.15}{746} \text{ HP} \approx 0.91 \text{ HP} \end{aligned} $$