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Stesso
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Measure House Water Pressure — Check Your Main Water Pressure

Beginner3 hours

Part of project

Boost Home Water Pressure: A Step-by-Step Guide to Improved Water Flow · Step 1 of 2

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In this video

To establish a baseline, measure the home's static water pressure. The inspector goes outside to a hose bib that has a water pressure gauge attached. He reads the gauge, which shows the incoming water pressure is 50 PSI.

Goal: Determine the home's static water pressure.

  • Ensure no water is running in the house to get an accurate static pressure reading.

Used in this video

  • Water Pressure Gauge (brand: Unspecified) — Measuring the static water pressure at an outdoor hose bib.
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Roger Wakefield Plumbing Education

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FAQs

What specific tools are essential for accurately checking my home's water pressure?

You'll primarily need a water pressure gauge, such as the Water Source Water Test Pressure Gauge WSPGH100, which easily attaches to an outdoor hose bibb. For adjusting or replacing a pressure regulator, an adjustable wrench and a pipe wrench (e.g., Crescent 12 in. Self-Adjusting Straight Pipe Wrench) are also necessary.

What is the most critical safety step I must take before attempting to adjust or replace my pressure regulator?

Always, without exception, shut off your home's main water supply before making any adjustments or replacements to the pressure regulator. This prevents water leaks, potential flooding, and allows for safe work on your plumbing system. Locate your main shut-off valve, typically near your water meter or where the main line enters your house.

How do I know if my low water pressure issue is definitely due to the pressure regulator and not something else?

Start by checking your main water pressure with a gauge; if it's consistently below the ideal 40-60 psi, your regulator is a prime suspect. However, if the gauge reading is good but pressure is low only in certain areas, the issue might be individual fixture aerators, internal pipe clogs, or issues specific to hot water, which this project doesn't cover.

My pressure regulator looks old or damaged; how do I know if it needs replacement instead of just adjustment?

Signs of a failing regulator include constant pressure fluctuations, banging noises in pipes (water hammer), visible leaks from the regulator itself, or if adjusting it yields no change in pressure. If the regulator is very old (over 10-12 years) or shows significant corrosion, replacement is generally recommended over attempting an adjustment.

Transcript
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We're looking at 40 pounds of pressure, and we're going to go out and check the pressure on the water, which is on the, I've got a gauge out there on the hose bed, see what the pressure's coming in is. And so we're looking at 50 pounds of pressure, and that should be about right. That's usually where they set the regular wagon valve coming in at around 50 PSI, but it can vary between 50 and 60.

Auto-generated transcript. May contain errors.