Step 3 · Test Water Flow After Aerator Cleaning
After cleaning and reinstalling the aerator, it's time to test. Slowly turn the shutoff valves under the sink counter-clockwise to turn the water back on. Open the faucet handles and check the water flow. If the pressure is restored, your job is complete. If the pressure is still low, the blockage is further up the line. Proceed to turn the water shutoff valves off again to continue diagnosis.