How To Clear An Airlock In Hot Water System 【2025-2027】

Banging or "glugging" sounds (water hammer) behind the walls. Method 1: The "Two-Tap" Hose Trick (Most Effective)

An airlock in a hot water system occurs when air gets trapped in the pipes, preventing the water from flowing freely. This can happen for a variety of reasons, such as: how to clear an airlock in hot water system

Turn on the hot tap first, then slowly turn on the cold tap . The high-pressure cold water will flow into the hot pipe, pushing the trapped air back up toward the header tank. Banging or "glugging" sounds (water hammer) behind the walls

Getting hit with a blast of cold air or a sputtering tap when you’re expecting a hot shower is a classic sign of an airlock. Essentially, a bubble of air has become trapped in the pipes, acting like a physical plug that stops the flow of water. The high-pressure cold water will flow into the