One gallon of water weighs approximately how many pounds?

The weight of water is a fundamental concept in various fields, including engineering and pool maintenance. One gallon of water weighs approximately 8.33 pounds at standard temperature and pressure. This value is derived from the density of water, which is about 62.4 pounds per cubic foot or 8.34 pounds per gallon, taking into account variations in temperature and impurities in the water.

Understanding this weight is crucial in pool management for calculating water volume, chemical dosages, and overall pool maintenance. For example, if you are assessing the weight of the water when troubleshooting pool equipment or designing drainage systems, knowing that a gallon weighs roughly 8.33 pounds aids in accurate calculations and ensures proper handling.

While other choices might seem reasonable, they do not accurately reflect the specific weight of a gallon of water under normal conditions.