Vertical pressure tank connected to a water pump outdoors

Well pump short cycling (waterlogged tank / pressure switch)

Short cycling is usually a pressure tank that has lost its air charge (waterlogged) or a precharge set wrong for the switch. It wears out the pump motor and pressure switch quickly.

Cross-checked ~60 min moderateBrands: All

Before you start

Pressure switch has exposed 240 V terminals (on most residential pumps): breaker OFF and verify dead before opening the cover
System is under pressure: drain before servicing the tank

Diagnostic steps

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