How much water pressure does 45 feet of head equate to in psi?

To determine how much water pressure corresponds to a head measurement, you can use the conversion factor where 1 foot of head is approximately equal to 0.433 psi. This means that to find the pressure in psi from a given height in feet, you multiply the height by 0.433.

In this case, you have 45 feet of head. To convert this to psi, the calculation would be:

45 feet × 0.433 psi/foot = 19.485 psi

Rounding this value gives approximately 19.5 psi. Therefore, the correct interpretation of 45 feet of head is approximately 19.5 psi, making this choice accurate and valid for practical applications involving water pressure conversion.

Understanding this conversion is essential in wastewater operations, as it helps in evaluating pump performance, system pressures, and overall hydraulic calculations critical for effective plant operation and maintenance.