Blocked drains are a common headache for homeowners across Australia. Whether you live in a coastal suburb of Sydney, a bushland neighbourhood in Melbourne, or a rural town in Queensland, a sudden blockage can cause water damage, foul smells, and costly repairs. This guide walks you through the most common causes, practical DIY checks, when to call a professional, and the local rules that affect how you deal with blocked drains. By the end, you’ll know exactly what to do the