Airlock In Water Tank =link= Jun 2026

A faulty check valve allows water to drain back out of the pipes and into the tank (or well) when the pump shuts off. When the pump starts again, it has to push air out first. Inspect the valve located near the pump or the tank outlet.

Upon inspection, Jack found that one of the airlock's valves had jammed, preventing the system from equalizing pressure. He quickly realized that this was more than a simple mechanical failure; the increased pressure differential had caused the tank's walls to shift, creating a small, but potentially disastrous, leak. airlock in water tank