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Low water pressure in shower troubleshooting
If all your neighbors have low water pressure, this could be an issue that needs to be fixed by the water company. If that is not the case, there could be a problem with the valves and pipes. In homes older than 20 years, steel pipes were often used and may have become backed up with lime deposits that interfere with the water flow. To solve this issue, contact a plumber. Before doing so, follow the troubleshooting tips below to try and resolve low water pressure.
Low pressure in just one fixture – First check the flow restriction and see if there is a washer stuck, clogged aerator or if there is a closed supply stop valve. If the fixture has an aerator, check that first and see if it needs to be replaced or just cleaned.
A shower head may have low pressure due to a restrictor. If this is the case, remove the restrictor (rubber or brass disk) or a washer that has become stuck.
Low water pressure throughout the house - Locate the water meter outside. There is typically a shutoff valve (often on both sides of the meter). Make sure these valves are open completely by turning it counterclockwise. If the valve is partly closed, opening them up should help solve the issue.
In some homes, the main supply valve is near the cold-water pipe. After finding the cold-water pipe, turn the valve counterclockwise to open it fully. If the house has a water-pressure regulator, this is typically by the main supply valve. This issue may need to be corrected, which is usually done by a plumber or someone with experience.
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