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Old 10-13-2010, 03:07 PM
 
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How do you know if you have a pressure reducing valve?

City Of Raleigh To Increase Water Pressure In Northern W.F. - Wake County - MyNC.com
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Old 10-13-2010, 03:36 PM
 
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It would be strange for a house not to have one.

Look for something like this where your water line enters your crawlspace or house (note it could be upside down):

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Old 10-13-2010, 04:02 PM
 
Location: Cary, NC
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Good photo. And it could be sideways, on a vertical run of pipe.

In some new construction, it is beside the main shut off valve for the house, and may be in a closet or utility room on the first floor.
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Old 10-13-2010, 04:49 PM
 
Location: Cary, NC
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Assuming your house has one (and it probably does), the bigger issue is whether or not it still works. They don't last forever and one way they fail is to no longer reduce pressure.

If water pressure is something you're concerned about, go to Lowes and buy a $10 water pressure gauge that attaches to your outdoor faucet.
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Old 10-13-2010, 06:01 PM
 
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Quote:
Originally Posted by dedratermi View Post
Assuming your house has one (and it probably does), the bigger issue is whether or not it still works. They don't last forever and one way they fail is to no longer reduce pressure.

If water pressure is something you're concerned about, go to Lowes and buy a $10 water pressure gauge that attaches to your outdoor faucet.
That would work, although I've lived in a house where the outside spigots were not pressure regulated.

Frank
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Old 10-13-2010, 06:11 PM
 
Location: Holly Springs
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You can adjust your own pressure on the valve if you dare. The bolt you see sticking out the top is adjustable. The valve is very important as the pressure put in from the city exceeds what your houses distribution pipes can likely handle. If you are on a well, you will not have one of these.
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Old 10-13-2010, 06:36 PM
 
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Quote:
Originally Posted by sacredgrooves View Post
You can adjust your own pressure on the valve if you dare. The bolt you see sticking out the top is adjustable. The valve is very important as the pressure put in from the city exceeds what your houses distribution pipes can likely handle. If you are on a well, you will not have one of these.
I would not recommend doing this without a pressure gauge connected to monitor the pressure during adjustment. 80psi is the top end maximum allowed pressure beyond which point seals and hoses start blowing and causing leaks especially with appliances. Pressure regulators can also become clogged with debris over time causing loss of water pressure and other problems.

My former home in Florida did not have a pressure regulator and it was on city water, so not all homes will necessarily have one regardless of city or well water. In some areas having one may be required by code but not all.
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Old 10-14-2010, 06:37 AM
 
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Also, it's good to note that pressure valve adjustment is backwards to what you would expect. You tighten the nut (clockwise) to get more pressure and loosen it (counter-clockwise) to reduce pressure.
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Old 10-15-2010, 12:06 PM
 
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Originally Posted by MikeJaquish View Post
Good photo. And it could be sideways, on a vertical run of pipe.

In some new construction, it is beside the main shut off valve for the house, and may be in a closet or utility room on the first floor.
Yeah, we definitely do not have one of those. Ours is located in a closet and is just a normal looking round water cut off.
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Old 10-15-2010, 12:11 PM
 
Location: Cary, NC
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Originally Posted by Strongasabear View Post
Yeah, we definitely do not have one of those. Ours is located in a closet and is just a normal looking round water cut off.
I should have said on a slab...
Are you on a crawlspace?
On a crawlspace, it seems to commonly be under the house.
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