Questions tagged [water-pressure]

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Water flow/pressure drop

When I was installing a tankless water heater in a new location - I decided to replace my 1/2 copper with 3/4 pex as part of the project. However, after turning on the water back on if more than one ...
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1answer
49 views

Well water pressure drops after very little use time

Purchased my home 8 months ago and one of the first things I did was replace the pressure tank, switch, and water softener, and added a new filtration system. Everything was running fine, but overall ...
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1answer
55 views

Water pressure in bathroom sink

Wondering why the cold water comes out with full pressure but warm is at 1/4 of the pressure? What are all the things I can check?
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4answers
68 views

Thermostatic control of an unmanaged energy source to supply hot water cylinder

I have a solid wood burner that contains a heat exchanger. There is no guarantee that the combustion can be regulated. This heat exchanger feeds a loop that acts as the source heat exchanger in a hot ...
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1answer
44 views

What are my options for ensuring that water pressure doesn't drop in the top floors when taps in the lower floors are opened?

In many multi-storied buildings, I've noticed that the water pressure in the top floor taps reduces drastically when the taps on the lower floors are open. I'm currently in conversations with the ...
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2answers
24 views

Reduced hot water pressure after closing and reopening water supply in one upstairs tub

A week ago, my dad had shut off the main water supply to our house to repair a leaky shower head. Upon opening water supply, our faucets sputtered for a little while as they normally do and water ...
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1answer
37 views

How much pressure fluctuation is normal on 3/4" line when one tap is open?

We have a 3/4" meter / water supply line to our house. How much pressure difference should I expect between when no water is running and (say) one cold tap is open full? I assume flow rate is about ...
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0answers
75 views

water company replaced meter now very low water pressure!

I recently came home from work to find the water company digging up my front yard. Apparently they were putting in a new meter? An hour or so after they left i turned my kitchen sink on and water ...
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1answer
33 views

Reducing pipe size on Booster pump

My potable water pipe is half in throughout. The booster pump I would like to install is 1 inch. Can I add two reducers to accommodate this pump and would this cause any problems as such? Firstly my ...
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0answers
28 views

Low water pressure issue

I have replaced both PRV and expansion tank and still have an issue with water pressure when one or more taps are used. Any ideas for my next step.
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2answers
55 views

High water pressure issue from hot water heater

Hoping someone can help me with this weird issue I am having with the water pressure at my house (at least seems weird and mysterious to me). This is an issue that started happening about 6 months ago....
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1answer
43 views

Well pump ends up overwhelmed. How can I solve this?

I have moved into a house with a well. Occasionally if too many water uses occur the pressure tank is expended and it trips the switch to off and it stops running. If I go down and reprime the ...
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2answers
98 views

Home water pressure consistently exceeds 150 PSI

Background: When I bought my home it had a 50 gallon gas water heater in the garage without an expansion tank. On the hot water line there is a Watts adjustable pressure relief valve (this NOT the ...
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1answer
59 views

Questions about home water pressure (105-110 PSI range) and the drastic pressure drop when a single faucet is opened

I live in a three-storey townhouse and have measured with a pressure gauge on an outside faucet, at the laundry machine cold water feed and on the hot water's hose-compatible drain a pressure of ...
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1answer
43 views

Shower makes loud squealing noise at lower settings

I have an older three knob shower that make a ridiculously loud squealing noise along its pipes all the way down to the basement. It outputs water at a quite a high pressure and whenever I try to ...
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2answers
35 views

Question on New Shower Install Pipe Sizing

I am currently remodeling my bathroom downstairs (same floor as the water supply entry to the house). I want to install a Moen U thermostatic valve with (two) 1/2" inputs and (two) 1/2" outputs. I ...
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29 views

Is there a difference between A112.18.1 and A112.18.1M (both 2.5gpm) shower heads?

Also, what does this practically mean when it comes to shower heads?
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0answers
24 views

Hot water spigot in bathroom shuts off aftere a few seconds

When i run the hot water in my bathroom sink, after a few seconds i hear a bang behind the wall and the hot water shuts off. This only happens at this one location.
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1answer
52 views

Increased Water Pressure after Expansion Tank Replacement

Two weeks ago, I had to replace the expansion tank on my hot water heater due to a small pinhole on the top. Ever since then, it seems like there is increased water pressure when I flush either of ...
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3answers
55 views

*Reduce* shower pressure?

I just moved into a new apartment on the 2nd floor of a 30 story building. The shower is one of those single-handle types where you turn to change temperature, but flow isn't adjustable (unless I'm ...
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1answer
61 views

1/2“ Feed, 3/4” Piping, Effect on Water Flow Rate

Currently plumbing a 20" rain shower (droplets + water fall). Using it with a water pump/booster. The valve that comes with it has two 1/2" inlet which consists of cold + hot water so it's basically ...
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2answers
121 views

What causes water pipes to shake violently with no known catalyst?

I woke up this morning to the sound of my water pipes shaking violently. So violently that I could feel the walls moving. The house was built around 10 years ago, and has water hammers. Normally I ...
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1answer
30 views

Will inline water well tank resolve spitting at faucets?

After changing old style well tank from inline
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1answer
34 views

Kitchen faucet low pressure

I believe the low pressure from my kitchen faucet hot and cold is from this blue connector. The faucet and parts are new. If I disconnect this, the pressure seems normal, but with it connected it ...
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2answers
115 views

Why would turning on/off hot water when the toilet is flushing cause the tankless pressure relief valve to release water?

I noticed the other day that my tankless hot water tank was occasionally spraying water all over the place from the Pressure Relief Valve. The only way I've found that seems to reliably trigger this ...
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2answers
73 views

Boiler heating gauge drops to negative pressure (psi) on cooling

I just moved into a older house (1937) which has a boiler heating system (steam). When the boiler kicks on the gauge barely goes above 0 psi, and after heating the gauge will drop to about negative 5 -...
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2answers
55 views

Pressure Cycling and Suspected Ruptured Line

We're having a bit of trouble with our well and water pressure, and I'm hoping you all might be willing to help us troubleshoot. This is a residential home with a well and a tank with a 40/60 ...
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2answers
92 views

What heating system do I have, and what can I do about water pressure in my shower?

New homeowner (UK based) and getting to grips with all that comes with that. I previously only lived in a flat with a standard combi boiler, my new home seems to have an older system in place ...
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1answer
25 views

Is there any way to test the water pressure at a structure, and if necessary from a specific output (hose bib)?

Reading about irrigation sprinklers (example product), I see a certain recommended PSI. With interest in powering an existing irrigation zone from the hose bib attached to the property, it seems ...
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0answers
29 views

How to investigate occasional water-pressure problems?

After living in the house for about 10 years, a few weeks ago we started noticing occasional drops of water-pressure in the showers and faucets. It is not consistent -- after one person struggled ...
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1answer
179 views

How do I equalize the oscillating cold and hot water pressure in shower?

Background Hi there. Newbie here from South Africa. A couple of years back we moved into our first home. We have this problem where the water in our shower keeps oscillating between too hot and too ...
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1answer
39 views

Well pump short cycle diagnosis

I've found a number of resources about short cycling, but none of them mention how to interpret the pressure meter. In this case, it's a small tank that feeds a bathroom. It used to work fine, now ...
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1answer
128 views

Combining two water inlets into one. Does increase pressure

There are two water pipes with same diameter and same water pressure. If we combine both pipes to get single output. Does it increase water pressure on final output or the pressure will be same. What ...
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2answers
191 views

Pressure tank losing pressure

My pressure tank is losing pressure. It cycles about once every hour if no water is used. It turns on at 30# and goes off at 50#. The tank is less than a year old and looks in good condition. I just ...
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2answers
935 views

Can I just add air to an air-over-water pressure tank?

We have an older well system in a house that we purchased this summer. The information that I have found on the web assumes that there are some valves in the system that I don't have, for instance ...
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0answers
60 views

Why would a sprinkler increase water pressure to house?

Update: Overnight, the pressure gauge spiked back up to 200. I tried testing the sprinkler system again. I ran the #7 valve (the one I noticed it was on when noise started happening) manually and ...
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1answer
82 views

Water heater noises when my neighbor's sprinklers are active

Hello I recently (few months ago) installed a tankless water heater following a failure of the old 55gal gas heater. Performance has been fantastic, it actually resolved a number of problems, but I ...
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1answer
85 views

how do I replace a single union pressure reducing valve?

I see a 115 PSI water pressure at my home. Looks like my PRV is hosed. I am a complete newbie in plumbing, please take a look at the pictures and help me understand what I need to replace the PRV. So ...
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3answers
306 views

in-line water filter gets clogged weekly after well-water pipe replacement

About a month ago, the pipe that brings the water from the well into the house was replaced. I have a inline water filter between the water tank and the UV remediation lamp. I replaced the filter with ...
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2answers
130 views

Would Replacing an Existing 3/4“ Water Main Line with 1” Improve Overall Volume/Flow to House (GPM)

After my own inspection and talking to the utility company I have the following: The meter (near the road) is 5/8" x 3/4". From what the water company told me - this is the most commonly installed ...
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1answer
28 views

Washbasin Tap not working properly and no water pressure. Refer images

just shifted to a house and after moving in got to know about the tap situation. The house owner hasn't shown up since ages as per current roommates. Kindly view the image and suggest a solution to ...
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1answer
45 views

Low pressure after water main pipe replacement

I have well water and the main pipe bringing the water from the well into the house had leak. The pipe was replaced with a new pipe about a month ago. Since then, the water pressure has been ...
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1answer
82 views

Plumbing Faucet: Water Pressure vs Water Flow Difference

They always say water flow (Gallons per Minute) and water pressure (Weight force) are two different things. Say I have a faucet with 1.8 GPM Aerator. 1) If I increase water pressure in my home, ...
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2answers
119 views

Flushed water heater yesterday got a lot of sputtering right after that and today hot water is not flowing with the same pressure as before

Yesterday I decided to flush my water heater and I did the following: turn to pilot turn off cold water supply to water heater open valve and drain hot water. I noticed it was still flushing for a ...
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1answer
39 views

Noise from water pipes, bad PRV?

For the last month or so I have had an issue with a loud pulsating sound coming from the water pipes. I’m not sure that it is water hammer, it happens when I flush the toilets mainly. I’ve tried ...
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3answers
105 views

Do braided stainless steel hoses with surface corrosion require replacement?

I'd be grateful if someone would resolve some conflicting advice I've been given on this topic. Some argue that the braiding does not contribute to the pressure rating of these hoses, and that ...
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5answers
96 views

Issue with loss of pressure in shower

There's an issue with our en suite shower that is currently puzzling us, and our plumber. Our en suite shower is making a high pitched 'squealing' sound after about a minute of operation, this is ...
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2answers
246 views

How does cold water pressure get used by a hot water heater to produce hot water pressure?

Recently I had to change a washer in the shower for my hot water tap. I couldn't find the pressure tap for the hot water on my hot water boiler. I asked a friend how to switch off the hot water ...
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1answer
142 views

Water pressure loss every 30 seconds

My water pressure almost stops every 30 seconds (I timed it while showering). This happens throughout the house. I have a well. We just bought the house, and we're new to wells. This morning it ...
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0answers
39 views

Brand New Fridge - Low water pressure from dispenser

I just bought a brand new - Whirlpool French door fridge. Water is coming out of the machine, and ice is being made... but... the water pressure from the fridge is slow. House pressure is fine, ...

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