To fix a hole in a sink, first stop the leak by tightening the faucet handle or checking for loose pipes. If the hole is in the sink basin, use epoxy resin or a specialized repair kit to seal cracks. For drain issues, replace the washer or O-ring. Apply plumber’s putty around the drain trap and secure it with a wrench. If the sink is severely damaged, consider replacing it. Always turn off water supply and drain excess before starting.

Fixing a sink hole prevents water waste and structural damage. According to the Environmental Protection Agency (EPA), a dripping faucet can waste over 3,000 gallons of water annually, equivalent to 90 full bathtubs. Epoxy repairs typically cost $20–$50, while professional replacement averages $300–$800, per data from the American Water Works Association (AWWA). DIY fixes reduce costs by up to 30% and minimize environmental impact. The AWWA also notes that 55% of household leaks occur in plumbing systems, emphasizing proactive maintenance. Using sealants like plumber’s putty (lasts 5–10 years) or epoxy (durable for 10+ years) ensures long-term solutions. Replacing worn parts, such as washers, addresses 60–70% of sink leaks, as reported by the National Association of Home Builders. Neglecting leaks can lead to mold growth (30% risk within 6 months) and increase water bills by 10–15%, per the EPA. Thus, timely repair safeguards health, saves money, and preserves water resources.