⚠ Safety note: This guide involves working with plumbing. If you're not completely sure about every step, stop and call a licensed professional. Before you start, always switch off the power at the breaker or close the main water/gas valve.
1 Prepare for safe work
Close the corresponding valve, turn off the electrical power to the appliance if any, and wait for the water to cool. Protect the floor with a bucket and rags and photograph the initial position of the joints.
⚠ Warning: Acids can damage black, gold, and other decorative coatings; check the manufacturer’s instructions.
2 Determine the pattern of the problem
Close the faucet and protect the chrome with a rag before unscrewing the aerator by hand or with a wrench.
3 Check the most common cause
Disassemble the parts in the exact order, rinse the sand, and briefly soak only compatible parts in a mild citric acid solution.
4 Apply the appropriate solution
Clean the mesh with a soft brush, replace the gasket, and screw the aerator back on by hand before a quick flow test.
? Tip: Photograph the initial state and change only one thing at a time so you know which check really affected the result.
5 Test the result and set a boundary
Assemble the connections without overtightening, slowly open the water, and monitor for leaks, pressure, and drainage for at least a few minutes. If the problem returns, close the supply and call a plumber.