Test and Adjust Your Home’s Water Pressure — by Home Repair Tutor

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26 thoughts on “Test and Adjust Your Home’s Water Pressure — by Home Repair Tutor”

  1. When testing water pressure I'm doing it with no water running inside the house and the reading goes up like crazy over 100 psi. But when I open a faucet, it goes down to 25 psi.  My question is which one is the one I use to measure.

  2. Could someone help? I have a shower that randomly produces no pressure at all and I do have a pressure regulator like the one in the video. However, it is really painted over and I cannot turn the bolt without using a heavy amount of torque. Any advice out there? I just don't want to ruin the thing

  3. So, Expansion tank failed, a while ago.  Capped it off until I could replace it.   Little did I know months would go by before I got back to this project.  I know, not good, but I'm getting to it now.  When checking the static pressure of the water system to determine the proper pre-pressurization of the expansion tank, my static water pressure reads almost 100psi.  W/ water turned on, 50psi.  Turned regulator counter clockwise, "water on" pressure dropped below 50psi, but when shut off, static pressure built to 100psi again.  Turned regulator clockwise, "water on" pressure rose as it should, but no matter how much I adjusted either way, static pressure would climb to 100PSI again.  I suspect my pressure regulator might be bad.  My Town water pressure varies between 60psi at high elevations to 160psi at lower elevations (as published in the Town Water Department Website).   I have a Watts Regulator -"N35B" – Size "3/4" – Model "US" – Set "STD 50" Range "25 – 75".   Thoughts?

  4. Recently we started hearing a loud humming noise when using the shower that would stop if someone turned in the sink faucet at the same time. I am assuming that means the pressure is too high? I adjusted the pressure valve left 1/4 turn to see If that helps. I will have to go purchase a water pressure meter to put on the nozzle. Thoughts?

  5. Thanks for your quick response!  I had one salesman tell me they didn't exist.  I assured them they did.  My local store did not have them.  I live in a remote area (Minong, Wi.) so someday when I go to a larger town I will look.  One other question, why do I need to shut the water main off to do this?

  6. Hi Jeff, I live in a Apartment. My Slumlord has turned down the water pressure in my kitchen sink only on the hot water. The hot water in every other sink and shower in the building and apt works just fine. We can urinate harder than the water comes out. How do i turn the pressure back up my self? doing dishes is just easier in the bathroom now….

  7. You'll need to release the pressure to get a new reading. Ie, if you simply turn down the regulator the lines are still pressurized at the old level. Open a tap for a second, close, then watch your meter show new pressure.

  8. The price of $140 to $175 includes labor and the new WPR. I wish I lived in Southern CA and could recommend someone. Unfortunately I'm here in Pittsburgh, PA. 🙁
    If you don't have a good plumber yet you could ask some friends or join Angie's List for $49. It might be worth it to join, I've found some great contractors this way despite what others say.

  9. Really. ? That's just labor. Do you have anyone in Southern Ca? My WPR doesn't regulate anything. And the shutoff for the house doesn't move. So I am in a world of hurt

  10. It's preferable to get your water pressure down to 60-80 PSI. Of course you'll notice it at first but at least you'll preserve your home's water lines. Water pressure regulators do go bad, so you may want to see if adjusting it works and if it doesn't then replace it. Hope this helps Debbie.

  11. My water pressure is 110 PSI, Should I decrease the pressure to 80 PSI. Another problem I have, there is a knocking noise at the lower pressure. Does water pressure regulators ever wear out.

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