Watermark Certification: What Every Homeowner Must Know

If you're planning any plumbing work in your Australian home, Watermark certification is not optional—it's the law. The Watermark Certification Scheme is Australia's mandatory national scheme for plumbing and drainage products . This system ensures that all products installed in contact with drinking water—including TAPWARE, TOILETS, and SHOWER outlets—have been rigorously tested and evaluated against approved product specifications . The certification process involves testing by accredited organisations to verify compliance with relevant AUSTRALIA STANDARD requirements. For example, tapware must meet AS/NZS 3718 standards for water supply applications , while toilets must comply with AS/NZS 1172 . When shopping for bathroom products, look for the Watermark trademark—a "W" with an upward arrow—accompanied by a licence number . You can verify certifications through the Watermark Product Database online. Remember: only licensed plumbers should install these products in WA and other states, and using uncertified products can invalidate insurance and create serious health risks . Always choose Watermark-certified fixtures for peace of mind and legal compliance.