How to Clear a Stubborn Utility Sink Drain Clog

Time required: 20-30 mins · Difficulty 1/5

Est. DIY Parts: $10 - $25 · Pro Service: $130 - $220 · Est. Savings: $105 - $210

* Estimates based on regional/national contractor rate benchmarks. Actual part prices vary by brand and retailer.

Parts & Tools You'll Need

Clear the basin and try a plunger first Remove any standing water with a cup, place a wet-rag plug in the second basin (if double), and plunge the clogged side firmly several times.
Check and clean the P-trap Place a bucket underneath, then loosen the slip nuts on the P-trap under the sink by hand or with pliers. Empty and rinse out any lint, hair, or debris trapped inside.
Snake the drain line If the trap was clear, feed a hand-crank drain auger into the drain opening, cranking clockwise while pushing gently until you feel the clog. Crank through it, then pull the snake back out.
Reassemble the trap Reconnect the P-trap slip nuts hand-tight plus a quarter turn — don't overtighten plastic fittings.
Flush and treat Run hot water for a minute to confirm free drainage, then pour in an enzyme drain cleaner per the label to break down residual buildup and help prevent the clog from returning.