1. Check Other Faucets
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If other faucets in the building have low pressure, the issue may be with the main water supply.
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If only the shampoo bowl faucet has low pressure, continue troubleshooting below.
2. Clean the Aerator
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The aerator (small screen at the tip of the faucet) may be clogged with debris or mineral buildup.
Fix:-
Unscrew the aerator using pliers (wrap in a cloth to prevent scratches).
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Rinse it under water and scrub with a toothbrush.
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Soak in vinegar for 30 minutes if clogged with mineral deposits.
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Reattach and test the water flow.
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3. Inspect the Spray Hose (If Applicable)
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If your shampoo bowl has a sprayer, the hose or nozzle may be clogged.
Fix:-
Remove the sprayer head and check for debris inside.
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Clean with vinegar and a toothbrush.
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Ensure the hose is not kinked or twisted.
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4. Check the Faucet Cartridges or Valves
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The faucet’s internal cartridges or valves may be blocked.
Fix:-
Shut off the water supply.
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Remove the faucet handle and inspect the cartridge (or washers in older models).
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Clean or replace if needed.
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5. Flush the Water Lines
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Debris in the supply lines can reduce pressure.
Fix:-
Shut off the water supply.
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Disconnect the supply lines from the faucet.
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Place the lines in a bucket and turn the water back on briefly to flush out debris.
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Reconnect and test.
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6. Check the Water Supply Valves
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If the shut-off valves under the sink aren’t fully open, they can restrict water flow.
Fix:-
Turn both hot and cold water valves fully open.
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7. Look for Leaks or Blockages in Supply Lines
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A leak or partial blockage in the water supply hoses can lower pressure.
Fix:-
Inspect hoses for kinks, damage, or leaks.
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Replace any faulty hoses.
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8. Check the Water Heater (For Hot Water Issues)
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If only hot water has low pressure, sediment buildup in the water heater may be the cause.
Fix:-
Flush the water heater to remove sediment.
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When to Call a Plumber
If none of these solutions fix the problem, you may have a more serious plumbing issue (such as a partially closed main valve, pipe corrosion, or a pressure regulator issue). In that case, it’s best to contact a professional plumber.
