To fix two water faucet leaks, start by shutting off the water supply under each sink. Disassemble the faucets by removing the handle, escutcheon plate, and stem. Inspect the washer, O-rings, and seat for wear or damage. Replace damaged parts with manufacturer-specific components. Tighten the stem and reconnect the faucet, then test for leaks. Repeat the process for the second faucet.

The primary causes of faucet leaks are worn密封圈 (seals) and damaged washers, which allow water to escape. According to the Environmental Protection Agency (EPA), household leaks can waste over 1 trillion gallons of water annually in the U.S., emphasizing the importance of prompt repair. Studies show that 90% of faucet leaks are fixable with simple parts replacement, as most issues stem from affordable components like O-rings and washers. For example, a 2021 study by the American Water Works Association found that 75% of DIYers successfully resolved leaks by replacing these parts, avoiding costly professional fees. Additionally, the EPA estimates that fixing a dripping faucet can save up to 10,000 gallons of water yearly, reducing both environmental impact and utility bills. Proper installation is critical to prevent recurring leaks, as misaligned parts or overtightening can damage the faucet’s internal structure. By addressing both faucets systematically, homeowners ensure long-term functionality and cost efficiency.