How to adjust & measure home water pressure

How to adjust & measure home water pressure

You might want to check your water
pressure because you moved into a new house and you notice it’s either too high or it’s too low and you can get one of these to check it.
This is Rainbird brand It’s just a gauge you can hook up
to your outside faucet if this uses the same
water that your house plumbing uses. Sometimes as a secondary water system Some neighborhoods and communities
have and that wouldn’t be Something you can check your inside house pressure with. but I don’t have the secondary system here. It’s all hooked up to the same line coming
from the city. This pressure gauge has a connection on it that fits perfectly on
your hose threads. So we’ll put that on. Now that it’s on real tight I’ll turn on the water and we’ll see that this is going to about just over 50psi. For some reason kind of fluctuates when you do that but it’s pretty
accurate. Now that’s pretty low Usually you want be no more than about 85 PSI You can check your local building codes
and see what it is. at your area but generally 80/85 is about
the high range in where you wanna be and you could go lower if you don’t mind
less water pressure in your house. It’s not really going to affect too much. and it might save you a bit a money like
when my kids leave the hose running all day long and
I don’t notice it well if it’s at 50 PSI and not 80 then my water bills is going to be less. Some gauges; let me zoom in on the gauge here… This gauge costs under $10 bucks. I think it was around $7.50. That included shipping [bought it online] and a little bit higher end ones will
have another Armani the red one to Julie smaller and what that will do is measure the
high and off the water pressure on times water pressure can fluctuate
are at different times of the day and it
night maybe what most people are using water in your area you’re going to get
more pressure sometimes that happens and so if you leave this on in this goes up and down well what by the time
you check it again wherever that red line is that was your
Mac’s water pressure a for the period that you
left it so anyway you can hook this up here now
let’s see did have a secondary from water system in this is not going
to help you to hook it up to your host so can also hook it up to your water heater
all take this off and you can see how that’s done just alright at the base your water heater I
have to here I hopefully you see this pool stay get and all other times water heaters collect a
point to credit the fall of but I don’t wanna push into my cage so you know on do this a little water out
here as tile let’s see if we can Sears here in st. it is see that scanner brown murky there’s little gravelly bits phone and their something
a little better this out I’ll sis yeah it’s pretty girls costs Kell alright that’s looking clear enough k so put on the gauge her and outside was
about 55 see how inside its bit less that’s kinda normal this is
about 45 so it’s not rare to have it not be the same insiders is on the outside or commuters skimpy that also how close you are to the main helpful
affect the pressure but generally gives you an
idea alright hopefully can find something that looks like this on their
property I’m in now my cold storage here and this is a
concrete wall were below ground and right here is the water coming in
from the city line an Asus copper pipe come to the wall and splits of this line goes to this piece here which is called a perv or
pressure are reducing valve and turning for the pressure gets capped a certain
level and then goes up in splits often does
all the pipes and things in a goes over different facets
in the house this branch goes up to run the sprinkler line and this is the train for I got in the
water out up to sprinkle on this doesn’t matter
but this does not do the holes the hose comes off I in my house on this line so then this is one that’s regulated and
this is what religious to your water pressure and right here there’s of screw you can insert here flat I’ll screwdriver there and undo the Volt’s
ovary you need a a a wrench and screwdriver to
adjust this okay this says size three quarter inch said it 50 PSI that actually accurate and the range
here says it can go up to 75% PSA so let’s increase the surface like just a little
bit more water pressure so to do that you undo this now I and hold it in place no counterclockwise on and I still go all
the way just a bit and releasing have will allow you to spin this now spinning this clockwise increases the water pressure
in counterclockwise decreases it um and you might want to count the amount it
turns just see have a reference of how much you did so a I don’t know first thing with all
models book with this type spinning it counter clockwise increases so we’re going to
that of one turn switzer severe of two turns and for Cisco check and see what that
did how much to turns will adjust the water
pressure except but okay that bomb to right up to 60 and I’ll try that out my house see how I like the pressure and for
wanna put up a little bit more I can that pump her that reducing valve will go up to 75% and so hopefully this videos helped if you
have any questions go ahead and put them in a comment alternates room and if you like the
video give it a like and subscribe thanks for

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About the Author: John Markowski


  1. I've heard it's dangerous to have a water pressure that's too high. Is that true? It makes sense because water can carve copper out and create pin holes. What's your experience?

  2. my pressure relief valve is made by Watts and looks to be really old. the tag says 50-75 psi. i just had a new water heater installed and the pressure gauge i had installed with the expansion tank ready 90 psi when i came home from work (no one was home all day and the water wasn't used from 8:30am – 6:30pm).

    does this mean my pressure relief valve has failed and needs to be replaced?

  3. can you please help me because I have black water coming from kitchen faucet only. it is not coming from any other faucet. I don't have any filter on my faucet.

  4. Okay, I got a good one for you. I noticed recently that sometimes when I turn on a faucet in the house it runs hard and high for a second. The relief valve on my water heater leaks periodically so I put a pressure gauge on a household tap and turned it on. It read fine at about 50 psi but I wanted to see over time how it fluctuates. The red needle was at 160 psi when I got home today. I already replaced the pressure regulator in the spring so it's not that. Any suggestions?

  5. "If your kids leave the water hose on all day…". LOL! Brother, I think our kids know each other. Thanks for the great video. Just save me 125 bucks by having a plumber come do it.

  6. water hammer only in the kitchen sink. kinda goes up and down in washer? I also have an issue with my water heater the vapor sensor keeps kicking and I have to reset it.

  7. very good video thanks. I have low pressure recently and the water company measure the outside hose is 100 psi so they told me that my PVR is bad

  8. I have a toilet than runs continually do to a leak. when i shut the water off to the toilet my water heater starts squealing like a tea kettle thats boiling. also the tub the water heater sits on fills with water. any ideas why the toilet is affecting the water heater?

  9. Only two comments, since the piping issue was addressed below.
    1) in most jurisdictions, you want a backflow preventer after the right hand shutoff valve for the sprinklers.
    2) The two nuts on the PRV should not be turned as one. The nearest nut should be fully loosened away from the second nut before they are turned, and then the near nut is tightened last, since it is a "jam nut." Turning them together can damage the threads.

  10. my house gets 30 psi … virtually no water when two fixtures are running at the same time. the city is coming to clear out the main line. should this fix the problem and give me more pressure? I do not have a pressure reducing valve so I can't adjust anything.

  11. I get a 25 to 30 point drop in pressure on the gauge when I flush a toilet. Is that normal or should the valve adjust to keep the pressure at say 60 to adjust for someone using the water. Also you said make it 80 to 85 psi. I am reading on the internet that 30 to 50 is where it should be. Can someone answer these questions.?

  12. This video is good and I wonder if anyone knows why the pressure regulating valve might be making a vibrating/hammering noise periodically???

  13. Thanks, increase my house GPM from 5 to 6.4 and my new rainbird sprinkler system requires 6 to use all six heads.

  14. This was easy to do and seems to have help out with the water pressure. I was thinking about going 1 or 2 more turns but I thought I would give it a couple of days and look for water leeks. Thank You.

  15. That's great, but all these American-made valves are crap. They will fail to adjust after being installed less than a year if you are hooked up to San Diego water supply. Almost like drawing water from the Salton Sea. And I have had many fail right out of the box! Look online and find an Italian, Swedish, or German-made quality pressure valve, and solder into your copper line (since their pipe sizes are incompatible with ours (of course). Or, move to the Pacific Northwest, and have all your fixtures and valves last for your lifetime.

  16. Easy to follow. Your video helped clarify exactly where I could test the water pressure and where and how to regulate it. Exactly what I was looking to learn. Thank you for taking the time to make it. Much appreciated.

  17. Informative. However, I don't have a water pressure valve. Humm.. Any suggestions on what I can do to increase our water pressure. If I do laundry OR water the garden, there is very little water pressure in the house.

  18. I've been having issues with busted lines , today I checked my water pressure and it's 125 psi , going to get it fixed !

  19. I'm a plumber in Washington state and I've always been told that anything over 80 PSI will void any and all warranties on anything that uses water IE; Washing machines, dishwashers, water heaters, faucets, etc…

  20. We don't have a basement, like you showed your water pressure regulator being at.  We just moved into a house in Prescott, AZ and the house is brand new and the water pressure is pathetically low.  Where would the water pressure regulator be nowadays,  on a brand new house?  I'd really appreciate any insight you can give me.  Thank you.

  21. My only issue is the main bathroom shower… My other 2 showers are nice and strong but the master bathroom is really low.. How can I fix that?

  22. Nice job, but it didn’t work for my house. Problem? My house was built in 2000 and doesn’t have a water pressure regulator. Maybe I missed the part where you said you had to have one to check it the way you did (which is entirely possible, since I have chronic Lyme disease and mold toxin illness, and both have moderately damaged areas of my brain that handle memory). I had researched articles, and like you, the authors stated that I needed to turn off my water while testing. Well not for my house, because of what I already stated. The water needed to be ON to get a reading. I don’t know anything about plumbing, but I was smart enough to figure that out. A disclaimer might help in the beginning of the video, that if you don’t have a water pressure regulator, keep your water on while testing the pressure with a pressure gauge. I did like the video though. Well explained for those that have a water pressure regulator. ?

  23. "….For some reason it kind of fluctuates…."

    By the way… that's what valves do, increase and decrease pressure.

  24. thanks for help. I installed a pressure reg. I now get a horn like noise while water is running. Can you advise me ? thanks

  25. My psi is still at 0 eventhough its activated.. no water coming out of all faucet eventho water tank is full and d machine seems working but still no water coming out n still 0

  26. You just saved me major money man, thank you. I could not figure out why my sprinklers were not working properly, this immediately fixed the problem

  27. Great video, Adam! I appreciate how you use a tripod and get some good, clear closeups. Audio is good, too, though it started off a little low – but I have seen so much worse! I have some questions that perhaps you or other readers might be able to help me with, if possible. I am trying to find my pressure regulator, but what I see doesn't look like any other pictures of regulators. My home is just over 60 years old in a suburb of Salt Lake City. The main line comes into the house in the basement. There is the old dial-type of shut-off valve about 6" up the pipe after it enters the house. That shut-off valve is part of a slightly fatter joint (for lack of better word) that is about 2" and on that fatter part is a screw-knob. My guess is that that joint is the regulator and the screw adjusts it. Does anyone know if that is the regulator? Another foot or two up, is the lever to shut the water off to my house. I think that may have been added later since it is more modern. My next question is my fear of increasing pressure in an old house like that. The upstairs main floor is pretty bad, and the basement isn't much better. We had the basement finished (putting in a bathroom), and since then, there is knocking when the washer water goes on and off. I'm concerned that even if the water pressure is low, that raising it a fraction will hurt the pipes especially with the on/off knocking of the washing machine. btw, I have called the city and they will send someone out to check the pressure at my meter. After that, I might also buy the gauge to see what it is inside my house and if it varies much from their gauge. But any ideas about my regulator and the knocking would be greatly appreciated.

  28. I'm not one to comment on many videos, but I have to say that this was nearly a perfect tutorial vid. Limited b.s., good demonstration, and nice explanation. Two virtual thumbs up.

  29. Depending on the age of your water heater "Never" open the drain valve unless you have to. The seals on older units will crack and drip know matter how tight you get them. My learning experience.

  30. Obviously not on a well. Mine runs about 40. More than that I cut my pumps life in half the plumber told me. 40 seems adequate as it drills holes in me in the shower.

  31. My plumbing looks almost identical to your video except I have a double check valve leading to the house fire sprinkler system. Also, I have a permanent pressure gauge near where the sprinkler drain line is located. This gauge reads 150 psi (not controllable by PRV since it's not in that part of the line) . I bought a gauge like yours and checked pressure at a hose connection and at water heater drain connection – both read about 105 psi. I did all this because we had a recent violent pipe rattling when both washing machine and shower were in use. I discovered that the water heater expansion tank diaphragm has broken. (A pressure check at bottom of tank emitted water instead of air.) Our water pressure does not seem extreme, but it sounds like we need to get it down to a maximum of 85 psi.

  32. thank you sooo much for this!! the water pressure in my place was terrible and i was thinking it was the fault of the regulator that my landlord installed recently. Then I did some research, found this video, and just had my boyfriend fix it!! I can't wait to wash my hair tonight.

  33. It seems my water pressure reducing valve is making a hammering noise early in the morning. If I shut off the water, it stops. If I reduce the level of flow from the shut off valve, it still makes noise. Does the pressure reducing valve need to be replaced?

  34. 80psi is WAY TOO MUCH! For longevity if water fixtures and appliances 40-45 psi is best. 60psi is the max I would recommend.

  35. I would note you risk leaks by putting plumbing under extreme pressure by going over 50+ PSI. Also you toilet fill/flush valves. I speak from experience in 2 plus homes when pushing over 50 + PSI. Just my .02

  36. So my outside hose reads 125psi front and at back 97psi but inside house laudry room it reads 60psi. Help!!!! Is this normal

  37. Thanks God I found this video! There are too many tutorials out there but this is the right model and very accurate tutorial I've seen so far.

  38. The pressure reading will be greater at the lower point.
    The outside spigot should always be lower than the hot water heater if the heaters were in the basement.
    Not 10 psi less. Hot water will also create psi.

  39. Hi, I have a pressure reducing valve as part of a Navien combi tankless water heater. There is also a pressure relief valve. The tankless needs to be less than 30 psi, otherwise the pressure sensor is constantly leasing pressure. I want to know if I can reduce the pressure to stop the constant release.

  40. I have a problem with hot water, the faucet and shower valve on second floor are very low pressure, with the kitchen faucet on first floor higher pressure, and the bathroom in the basement where the water heater is located appears to be fine. I replaced the faucet upstairs and pressure got better but not perfectly high. I can't get the shower valve upstairs work, it has very low pressure. Can you help?

  41. I know it's not nice to criticise, but this is bit 'long winded'. Helpful, but too much superfluous information, especially if someone is looking for a solution to a problem, we want to get to the issues quickly. Not all us of have all day to listen to search out solutions.

  42. Fluctuation water pressure during certain times of the day depending on neighboring demands? How can it be higher ? If your regulator is set to 65 psi your the pipes in your house will never see a spike in the pressure as the “regulator” prevents this from happening. Smh and avg water pressure you should have in your house is 65 psi

  43. I went ahead and wanted to see how high I could make my pressure. And it's now leaking everywhere what do I do now ?

  44. This was perfect man. I know nothing about this stuff and 2 years ago in my condo I did the exact opposite thing and broke my PRV and $600 later the plumber fixed everything. I used your video tonight and adjusted it in my new house and it worked perfectly. Thanks so much for doing this.

  45. I moved into a 100 yr old house and the pressure didn't seem all that great. I turned the regulator clockwise all the way but still doesn't seem strong enough. Am I missing something?

  46. I’ll tell you this. I increased my pressure over 70 psi and you gotta be careful. All the toilets and sinks and various connections seem to break faster and/or eventually leak. Pressures regulation is safer at default levels 45-50- I think out of reducer. The cheap toilet components and cheaper seals now days don’t seem to like higher pressures. Basically you’ll risk popping lines and instigate a flood. As me how I know. And when insurance companies come in, they check to see if you played with it as an excuse not to pay a claim. Just a heads up.

  47. I live in a condo. Ga Power Company came and checked our pressure, and it seems that I am one of the owners who has to “ install a pressure regulator “. I was told that a plumber will charge me $ 450.00.

  48. Thank you! My pipes stopped vibrating with just one counter clockwise turn. I will have to get a gauge to confirm the pressure.

  49. In my home, when we use the washer have zero pressure in our kitchen sink or any other parts of the house. the house is an old home built in 1936-39. So do I need to have a pressure connect installed to my in-coming line?

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