Questions tagged [valve]

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Cannot shut off water from street valve

This might be a very basic question. But I just bought a new house and it has a valve on the wall outside my house: I tried to turn the valve to match the hole, both clockwise and counter-clockwise ...
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144 views

Thermostatic Shower Valve Not Adjusting Temperature

I have a Cifial thermostatic shower valve that is not adjusting the water temperature at all when the knob is turned. I took the unit apart and couldn't find anything that was glaringly wrong but I am ...
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1answer
37 views

Trying to identify cause of minor leak from water heater TPR valve

A few days ago I noticed about a capful of water in the pail at the bottom of my water heater's TPR valve outlet. This is the first time I've had any water come out of the TPR when I wasn't testing ...
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1answer
41 views

What is too high of a pressure for irrigation systems

I purchased a home four years ago where the owner installed an irrigation system. I noticed the valves were leaking then and replaced four of eight. I figured they were old, and wear and tear took it'...
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1answer
29 views

Unable to turn off cold water flow in airconditioner, possibly due to solenoid valve

We had an accident with air conditioner yesterday where controller mounted to the wall shortcut and broke. I had to turn off electricity switch for airconditioner, but woke up this morning realising ...
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1answer
94 views

Is there a pressure activated water valve

I would like to buy a pressure activated water valve (for irrigation), so that when the water pressure is above P1, the valve will turn on, and when water pressure drops below P2, the valve will shut ...
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0answers
49 views

Can i have a cheat vent valve outdoors?

I am building a small bathroom on the first floor of my house. I need a vent but cannot access the main stack above the water line. I was thinking of going straight through the roof of the first floor ...
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1answer
173 views

Shower valve washer on hot needs replacing constantly

We've got a setup very similar to the picture in the answer to this: 3 valve shower allowing flow to tub and shower I've read some similar questions here, but none is just like this: The washer, ...
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1answer
61 views

Moen kitchen faucet replacement

I had a leaky kitchen faucet so I got a new Moen 87557 from Homedepot. I was able to install everything up until I was ready to connect the faucet to the water outlet. The old faucet had a 3/4" (I ...
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1answer
264 views

how to fix leaking shut off valve

I have a water shutoff valve that has one end into a plastic pipe that is coming from mains and another end is going into the faucet. There was never a leakage from this until recently when I had to ...
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1answer
60 views

How to close this water valve

THis is a valve where a pipe comes from below and goes to two pipes on top. How do I close the valve? I have tried moving to different positions but it just doesn’t work! What’s the name of the valve ...
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1answer
1k views

Should I replace toilet fill valve or cap

My toilet fill valve leaks at the top only when the bowl is full. Until the bowl is not full it is not leaking from the top. This is a video of the leak: https://vimeo.com/270998266 I want to decide ...
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2answers
312 views

How to shut of water supply to laundry tub?

The faucets on my laundry tub need to be replaced. I'm trying to figure out how to shut of the water supply to the hot and cold lines. There are two valves(maybe?) inline on each of the water lines ...
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1answer
66 views

This shower valve doesn't seem to have a set screw and i need to take it off

Someone lowered our shower heat a couple years back for an older family member. I've tried taking it off but its like there's no set screw at all. It's a delta series 1400. There are no other openings ...
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1answer
29 views

Sink valve replacements, concerning draining water

Two fold question. Background: water to sink and shower shut off for two months prior to shutting main to replace cold water valve. I drained all faucets except the shower. When I removed the valve, ...
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1answer
286 views

How do I turn off this two-pipe steam radiator?

We live in an NYC apartment with steam heat. The noise of this radiator is driving us crazy because it's in the bedroom. We want to turn it off. The solution seems to be to shut the intake, the same ...
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1answer
70 views

What kind of plumbing fixture or valve is this?

It's on a residential water supply line immediately downstream of water meter and main shutoff valve. I would guess pressure reducing valve, but it seems to small to be one, at least compared to the ...
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3answers
746 views

What are normally-open hydronic zone valves used for?

In a hydronic (hot water) heating system electronically operated valves control whether hot water runs through a particular zone of the building, or not. It seems to be a common setup for the valve ...
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2answers
154 views

Difference between geothermal and regular hydronic zone valves

Taco makes two variants of zone valves - one type for general hydronic use, and another type marketed especially for geothermal use. What is the difference in valves that particularly suits them for ...
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1answer
593 views

Natural Gas Furnace Installation Shut off valve Direction

The furnace installation directions specifies a shutoff valve with a 1/8" NTP plugged hole for test gauge. I bought this valve and am ready to assemble the pipes but I am uncertain about which side of ...
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2answers
216 views

Can I use compression connections on rigid “L” copper?

I'm running 1/2 inch "L" copper to plumb my bathroom. I was intending to use the same pipe for the risers and stubs, which will connect to shutoff valves with compression fittings. I was going to use ...
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2answers
249 views

Are there ball-check valves available for pex? [closed]

After some searching the web I am failing to find any available ball-check valves (described on: https://www.archtoolbox.com/materials-systems/plumbing/plumbingvalvetypes.html) that I can use with my ...
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1answer
160 views

Leaky shut off valve to toilet need to know what kind of sealant to use can't turn off Main water

I can't afford a plumber at this time and the valve is leaking so badly it floods the bathroom. And somehow the main shut off is not working either. My house has been vandalized which is why I believe ...
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3answers
1k views

Bleeding a Cast Iron Radiator with No Bleeder Valve

I am having an issue with a single cast iron radiator where it is not heating up at all. All other radiators are working fine in the apartment. A lot of people suggest bleeding the radiator, however, ...
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1answer
67 views

Help identify a mystery brass part along the water line

What's the function of the brass piece along the water supply line. This is the supply line for a hydronic floor heating system. Something is malfunctioning and one of the possibilities is that I have ...
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2answers
63 views

Is this a “fill” valve and how do I use it?

Is the valve in the picture a fill valve? And if so, does its use require loosening the screw at the top?
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1answer
332 views

How can I install a thermostatic shower head in a finished bathroom?

In our last house, we had Thermostatic Shower Valves installed when the bathrooms were being remodeled. Now in our new house, I would like to install one on our main shower but I don't want to tear ...
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0answers
36 views

How near does the water heater shutof valve need to be?

Codes say I need a shutoff valve "near" the water heater, accessible on the same floor. How near is "near" - is it OK if I have one on the source side of the pipe, near the water meter? (It's a ...
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0answers
310 views

Replacing valve stem for a faucet in roman tub

I have a fully tiled-in roman tub. The hot and cold water faucets use compression type valve stems. The washers get worn out every few months, leading to drips. I have done the following several ...
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2answers
155 views

Shut-off valve fitting waxed hemp vs unwaxed hemp vs teflon tape?

EDIT: Or some of those combinated? What is the best method and why, and what is the proper way to apply?
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1answer
51 views

Are anti-limescale (anti-cal) shut-off valves just a marketing stunt?

I have found anti-lime (anti-cal) valves, they were ball valves with a plastic ball inside instead of the usual brass/chrome. Is it a marketing trick or is the plastic ball inside better in any way ...
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2answers
110 views

Are there any cons to use a T-fitting into two ball valves instead of one combinated (Y-valve or similar) valve?

I was just wondering, because I could not find a cheap combinated valve (not from the US) for my sink and washing machine hoses and all of those I found, even tho they were overpriced, were not even ...
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649 views

How to free up a stuck main water valve whose handle spins freely?

Main Water valve will not open or close. Feels 3/4 closed. I desperately need it open. Handle free spins. Please help! No water in two days.
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1answer
616 views

Identify this shower diverter valve

My shower diverter valve has gotten all gunked up due to the very high mineral content of our water, to the point where it won't turn unless you put all your weight into it, and I'm trying to fix it ...
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1answer
662 views

Hot water radiator valve leaks

The attached picture shows the valve on a hot water radiator that leaks and the arrow points to where it leaks. It drips about one drop a minute. It feels like a quarter turn on that nut might fix ...
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0answers
29 views

How to get water flowing back into refrigerator after installing a water filter?

I shut the valve off on the Hammer Arrestor, then added an inline water filter, but when the valve is on no water is coming out. Do I need to turn the water supply off to the house and then turn it ...
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1answer
64 views

How can I turn off this shutoff valve

I'd like to turn off the water supply to the washlet for cleaning, possibly without closing it for the entire house. I thought it would be easy. But apparently i'm not able to close this water valve. ...
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1answer
109 views

Is it ever necessary to have more than one back flow valve?

I live in a house from the 60s that somehow never had a back flow valve. My insurance company is pushing me to get a back flow valve installed before they will provide basement flooding insurance. ...
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1answer
156 views

Unable to locate shower shutoff valve

I wanted to repair a dripping in-shower valve, and as the first step searched for a shut-off valve to the shower, only to discover there is apparently none. Similarly, I cannot find a valve for the ...
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1answer
42 views

Leaking valve (kohler)

I'm replacing the kohler valve for bathroom faucet (hot water). However, this part shown in the picture is leaking. I tried with plumber tape which helps but doesn't stop the leaking. Can anyone tell ...
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1answer
453 views

Toilet intermittently continually fills

My toilet has started running on after flushing - water continues to enter the cistern from the top of the fill tower, and flow out through the overflow. It's not a "perfect" failure; if I depress the ...
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63 views

Air compressor won't restart BTFP01012

When my dad's BTFP01012 air compressor reaches 150 PSI, he uses the relief valve, and the unit stops working i.e. turns off and does not restart to replenish the air. So he replaced the pressure ...
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1answer
578 views

How do you shut off this water softener bypass valve?

Post title says it all. I am stumped. It's the knobs on the left and the right side in the photo. However, I am unable to turn them. I have tried to pry the red clips up and then turn, but that ...
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2answers
3k views

Constantly running toilet with floatless fill valve

Is there anything to try or does the fill valve just need to be replaced? A toilet with a floatless fill valve isn't fully closing and is filling past the overflow tube (blue circle in image): I ...
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1answer
146 views

why is my unfinished shower wet

I installed a shower valve I installed a custom mortar shower pan (pvc liner with plastic vapor barrier behind the walls) I installed cement boards on the wall the area on the front of the cement ...
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2answers
1k views

Replacing pressure gauge on water holding tank

The water coming in from the well is supplied by thick rubber type pipe cut and angled with metal bands. There is no cut off valve to the water holding tank. I need to replace the pressure gauge (...
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2answers
2k views

Fluidmaster 400A fill valve: very slow toilet tank fill

I installed a Fluidmaster 400A almost 10 years ago. There is excellent water flow into the overflow pipe, but the tank is taking longer and longer to fill after flushing--now almost 4 minutes. Much ...
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1answer
47 views

Hot water isolating valve, when try to close the stem comes out

I have a valve on a hot water line that "appears" to be stuck just a little bit open. I don't want to risk breaking it so want to turn off the water earlier on the line. The problem is that when I ...
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1answer
83 views

Help identifying shower valve and cartridge

I can not find a manufacturer name anywhere. Here's a picture of the valve and the exploded ceramic cartridge and other pieces. Thank you very much in advance.
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1answer
150 views

Type of valve to use on PVC misting system

I am making a misting system for my back patio that consists of 1/2" pvc and connectors that have the misting nozzle drilled. I am putting a nozzle every 2 feet and going about 30 feet down my patio ...