How to Inspect the Plumbing Water Pressure (UPDATED 9/7/17)
While the inspector is at the exterior of the home they will want to check the plumbing water pressure at an exterior faucet. If the water pressure is within 40-80 PSI it is considered to be in an acceptable range. If it is lower than 40 or higher than 80 it should be called out as a defect. Please review the entire procedure below.
NACHI SOP
International Standards of Practice for Performing a General Home Inspection
3.6. Plumbing
I. The inspector shall inspect:
N/A
II. The inspector shall describe:
N/A
III. The inspector shall report as in need of correction:
N/A
IV. The inspector is not required to:
D. Determine the exact flow rate, volume, pressure, temperature or adequacy of the water supply.
Axium SOP Differences
Axium Requires: The inspector will check the plumbing water pressure at the property if there is an accessible faucet with a threaded end.
Tools Needed
The inspector will use the water pressure gauge on an exterior faucet or laundry faucet (if accessible) to determine the water pressure of the property.
Procedure
- First the inspector will have to find a faucet that has a threaded end, most likely while inspecting the exterior of the property.
- When checking the exterior faucet switch over to the plumbing section and take a picture of the water pressure on the gauge (between 40 to 80 PSI is acceptable).
- After the picture is taken turn the water off and take the water pressure gauge off the exterior faucet. Make sure to re-attach a hose if it needed to be removed to perform this test.
- If there is no exterior faucet that can be used to test the water pressure the inspector could use a laundry faucet if the hoses are not connected. DO NOT remove laundry hoses to check the water pressure.
- If water pressure is too high or low, you need to check and see if a pressure regulating valve is installed above the main water shut off to the home. Usually on wall towards front of house.
- If the property that you are inspecting has a well it is okay if the water pressure is between 30-50 PSI and would NOT be a defect.
- Low Pressure
- High Pressure
Common Mistakes
- Not getting a clear picture showing the water pressure of the property.
- If the water pressure for a well is between 30-50 PSI that is considered okay and would NOT be a defect.
Report / Software
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NI |
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NP |
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