Test how long the pump holds prime without use
ContextLet the pump sit completely unused for at least 12 hours, ideally overnight, then make the first stroke of the day and note whether water arrives within the normal range or whether the handle feels loose and dry. Record the number of hours the pump went without losing prime in your log. A pump that held prime for thirty days last season but now loses it in under twenty four hours is telling you the check valve or foot valve seal is degrading, a repair that typically runs one hundred fifty to four hundred dollars depending on well depth and access.

