Sydney Water and eco-toilet paper brand collaborate on a humorous flush guide to combat costly plumbing issues.

Sydney Water teamed up with eco-friendly toilet paper brand Who Gives A Crap to create a "Flushable Guidebook" printed on toilet paper rolls. The guide humorously educates users on what not to flush, such as dental floss, hair, and golf balls. Plumber influencers hand-delivered the guidebooks during unclogging visits to encourage better habits and reduce the $27 million yearly cost of blockages.