Total Pump Head ($H_t$):

$$H_t = H_s + (HL_{sp} + HL_f)$$

Where:

• $H_t$ is the total head loss, in feet (ft).
• $H_s$ is the head loss due to elevation, in feet (ft).
• $HL_{sp}$ is the friction loss on straight pipe, in feet (ft).
• $HL_f$ is the head loss on fittings, in feet (ft).