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Check several cold-water outlets and, separately, hot-water outlets. One weak tap can point to a local restriction, while a whole-property problem requires broader investigation.
Check timing and recent changes
Note whether pressure is always low or only at peak times, and whether the problem started after maintenance, a municipal interruption or a plumbing alteration.
Do not guess at pump sizing
Boosting pressure without understanding the incoming supply, pipework and existing controls can create new problems. Measure and diagnose before modifying the system.
Related information
Low Hot-Water Pressure
Low pressure on the hot side only can point to restrictions or components in the hot-water system rather than the incoming supply.
Water Pressure Changes During the Day
Pressure that varies by time can reflect supply conditions, demand, controls or system restrictions and should be measured before changes are specified.
Water Pressure Problems
Low or unstable pressure can result from supply conditions, restrictions, valves, filters, pumps, regulators, leaks or pipe sizing. The correct solution starts by identifying where pressure is being lost.
Whistling or Squealing Pipes
Whistling can be associated with restrictions, valves, flow velocity or specific fittings and should be traced to when and where it occurs.