We have all stood in a half-flooded basement or squeezed under a damp kitchen vanity, holding a flashlight between our teeth and wondering why we didn’t call a professional. But for generations of self-reliant American homeowners, fixing a leaky faucet, swapping out a garbage disposal, or sweating a copper line is a rite of passage. Do you know your wax rings from your closet flanges? Can you still thread an iron pipe or correctly wrap thread tape? Take this 20-question challenge to see if you earn the title of Master DIY Plumber!
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