To fix low water pressure on a water purifier faucet, start by checking the main water supply valve. If closed, open it fully. Next, inspect the aerator (the screen at the faucet tip) for debris; clean or replace it. Then, examine the water purifier’s internal membrane or filter for blockages. If these steps fail, test the home’s water pressure using a gauge (理想值通常在40-60 psi). If low system pressure is the issue, contact a plumber to address the pressure regulator or supply line.

Low water pressure often stems from clogged components or insufficient system pressure. A 2022 study by the Environmental Protection Agency (EPA) found that 68% of households with low faucet pressure had debris-clogged aerators, which restrict flow by up to 50%. Similarly, the Water Quality Association reports that 42% of water purifiers experience membrane blockages due to sediment or minerals, reducing output. A clogged membrane can drop pressure by 30-40 psi, while a faulty pressure regulator (common in homes built pre-2010) may cause systemic drops below 30 psi. The DIY fix success rate for aerator cleaning is 85% per Consumer Reports, while membrane replacement achieves 75% resolution. If pressure issues persist, professional repair costs average $150-$500, depending on the cause. Proactive maintenance, like annual aerator checks and filter replacements, can prevent 70% of low-pressure cases, saving households $200-$300 annually in service fees.