Airlock In Plumbing System Site

Before you call a plumber, try these DIY fixes. Note: If you have a modern "pressurized" or "unvented" hot water cylinder, skip to Method 2 or call a pro—forcing water backwards can be dangerous.

Gurgle.

While often mistaken for a serious clog or a pump failure, an airlock is usually a harmless—albeit annoying—pocket of trapped air that prevents water from flowing freely. Here is everything you need to know about identifying, fixing, and preventing this common household nuisance. airlock in plumbing system