When completing a well, what should be done to the well casing and equipment?

The best practice when completing a well is to swab and clean the well casing and equipment to remove oil, grease, and foreign substances. This step is essential because any contaminants left on the casing or equipment can lead to water quality issues, introduce bacteria, and potentially compromise the integrity of the well.

Cleaning with water alone may not effectively address all types of contaminants, especially oils or greases that can adhere to surfaces. Disinfecting with vinegar may provide some antibacterial properties, but it does not comprehensively address the necessity of removing physical contaminants. Likewise, covering with a protective sealant might be appropriate for certain scenarios but does not serve the purpose of ensuring cleanliness prior to the operation of the well. Proper cleaning ensures that the environment within the well remains safe and that the water extracted is free from harmful substances.