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Check Main Water Supply Valve — Check Your Main Water Valve

Beginner3 hours

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How to Increase Water Pressure in Your House · Step 1 of 3

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In this video

The first potential issue is that the main valve of the water supply line is stopped or not fully open. You might notice only hot water coming from the tap. To fix this, locate your main water valve for the house and ensure it is in the fully open position. If it's a lever-style valve, the handle should be parallel to the pipe. If it's a wheel-style valve, turn it counter-clockwise until it stops.

Goal: Restore Water Flow

  • The main water valve is often located in a basement, crawl space, or utility closet near where the water line enters the house.

Used in this video

  • Main Water Valve (brand: N/A, Tool Type: Plumbing Tools, Power Source: Manual, Material: Brass, Brand: N/A, Size/Weight: N/A, Purpose: Plumbing, Safety Features: N/A, Size/Dimension: N/A, Durability: High, Cost: N/A) · optionalControlling the water supply to the building.
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FAQs

What specific tools, beyond a multi-screwdriver and pliers, might I need for this water pressure project?

You might also need an adjustable wrench for the PRV or stubborn aerators, and a bucket to catch any water during disassembly. Having a small brush or a de-scaling agent can be very helpful for thoroughly cleaning mineral deposits from aerators.

Are there any crucial safety precautions I should take before starting to work on my home's water pressure?

Always shut off the main water supply to your house before attempting to adjust or replace the PRV or clean aerators. This prevents accidental flooding or leaks. Also, wear gloves to protect your hands from grime and potential sharp edges.

How much should I expect to spend if I need to replace parts like a Pressure Reducing Valve or multiple aerators?

A new Pressure Reducing Valve (PRV) can cost $50 to $200 for the part itself, depending on the model and features. Individual faucet or showerhead aerators are much more affordable, typically ranging from $5 to $15 each. Factor these potential costs if simple cleaning or adjustments don't resolve the issue.

I've checked the main water valve and cleaned my aerators, but my water pressure is still low. What should I troubleshoot next?

If the main valve is fully open and aerators are clean, the Pressure Reducing Valve (PRV) is the next most likely culprit. Locate the PRV and try adjusting its screw clockwise to increase pressure. If adjustment doesn't help, or if the valve appears damaged, it likely needs replacement.

Transcript
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Reason 1. Main valve of the water supply line getting stop. You may see heat wave or hot water coming from the tape. To fix this, try to re-open the main water valve. In this case, check blower whether it's on or off.

Auto-generated transcript. May contain errors.