Quick answer: A gurgling plughole is caused by trapped air being forced through the water in your U-bend, usually due to a partial blockage, a venting problem, or an issue further down the drain. Most single-fixture gurgles can be fixed at home, but gurgling across multiple drains—or anything accompanied by sewage smells—needs a professional. That […]
What Causes a Gurgling Plughole and How to Stop it
