How To Use Plumber Putty on Sink Drain (Step-by-Step Guide)

You’ve just installed a new sink or replaced a faucet—and now water’s leaking underneath. Frustrating, right? You didn’t think a tiny seal could cause such a mess. But here’s the truth: how to use plumber putty on sink drain is one of the most overlooked skills in DIY home repair—and getting it wrong can lead…