Questions tagged [valve]

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Replace PVC valve cemented on a water line

I have a filtering system with a bypass and one of the valves was badly installed and it also leaks through the handle gasket. The valve is in a system that looks like this: The encircled area is ...
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2 votes
2 answers
90 views

lawn irrigation valve box filling up with water

I noticed an irrigation control box filling up with water even when the sprinklers and gate valve were off. In order to trace the leak I removed approx 4 inches of dirt to reveal the fittings. I ...
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  • 457
1 vote
0 answers
57 views

Ball valve dangerous if used for gas fire pit and partially opened?

Someone made the comment that it's dangerous to have a ball valve partially open when used with natural gas in a fire pit. I wasn't able to get any more details as to why, but I've operated ...
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  • 426
0 votes
2 answers
70 views

Ball valve not able to control flow?

I was reading the difference between a ball valve and a globe valve and https://www.linquip.com/blog/globe-valve-vs-ball-valve/ was saying that you can't control flow with a ball valve. I'm pretty ...
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  • 426
0 votes
0 answers
31 views

Electric hot water system water stops running

Hot water is running fine then a clunk sound is heard and the water flow stops on all house hot water taps. What could be the cause? I suspect of the shut off valve on the boiler, could that be the ...
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  • 103
2 votes
2 answers
164 views

Supply stop / valve crooked piece - dangerous?

I had a contractor come in and totally botch a simple toilet installation which I'm going to have to pay a proper plumber to come fix up. He replaced a supply stop / valve and upon inspection it seems ...
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  • 207
0 votes
2 answers
31 views

Toilet water supply pipe cover rusted in place

This toilet valve cover is rusted in place. I can’t slide it up or down the pipe and the pipe itself doesn’t seem to be corrosion resistant. I am worried the rust if not resolved will eat into the ...
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  • 1
0 votes
0 answers
38 views

New Gas Water Heater Installation

I had a brand new water heater installed back in February but by the end of May, I had water gushing out the side of my house and the plumbing company is telling me it is the temperature and pressure ...
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1 vote
0 answers
64 views

Sounds like a motor running in my wall when the water is running

I’m in desperate need of advice. I started having a vibration in my pipes that sounded like a motor in my wall any time any water was running in my house. I checked the pressure and realized my ...
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0 votes
0 answers
31 views

Help identifying shower valve type/brand

I purchased a home with an outside shower that was winterized and this is all I have to help identify the brand for replacement parts. Any help would be greatly appreciated!
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  • 1
0 votes
1 answer
72 views

Kitchen Water Valve Not Working but Working

I am first time home owner facing a plumbing issue so any advice will help a lot. Underneath my kitchen sink basin looks the photo below. Recently I was trying to adjust water pressure and all of ...
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0 votes
1 answer
26 views

Can COMAP leaking ball valve be fixed without removing it?

The ball valve shown below (made by COMAP) is leaking from its stem: guzzling when half-open, dripping when open or closed. Can the leak be fixed without removing the valve? I don't see a stem ...
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0 votes
0 answers
30 views

Water Valve Orientation

I want to replace all the failing gate valves in my house with ball valves; and they are all installed on the vertical plumbing in between the joists, and these are rather inconveniently located. I ...
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2 votes
2 answers
81 views

How to better secure the toilet fill hose?

I was having issues with my old fill valve (a Fluidmaster) no longer filling and just dripping in to the tank, and also not shutting off reliably. So I decided to replace it. I got the new fill valve ...
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0 votes
2 answers
78 views

Cast Iron Valve/Square Wrench?

Found this in my grandfather’s garage. Any idea what it is/used for? Handle embossed with “KEEP UPRIGHT.” Square hole approximately 15/16".
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3 votes
1 answer
2k views

Do I need to replace this valve that a plumber claimed needed to be replaced? [closed]

We have this pipe that cracked, and we wanted to fix it. One plumber claimed not only does the pipe need to be fixed but this shut off valve also needed to be replaced. Mind you, he made this claim, ...
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0 votes
1 answer
52 views

What happens to quarter valve when I don't turn it on/off completely?

I have a quarter valve for the supply line to my whole house humidifier (fan-powered, by-pass type). It is on when pointing up (i.e. 12 o'clock) position and off when pointing to the right (i.e. 3 o'...
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  • 353
0 votes
0 answers
51 views

Hot water valve under kitchen sink

Was going to replace kitchen faucet, I turned off cold water and removed the line to faucet, then turned off hot water valve but upon trying to remove the line to faucet, the hot water is still on and ...
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  • 1
1 vote
0 answers
49 views

Dripping pipe in crawlspace - how much of an emergency?

I disconnected a refrigerator supply line (to the ice maker). The original tube was made of copper and I plan to replace it with braided stainless steel. However, I'm having some painting done this ...
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2 votes
3 answers
589 views

Why won't my laundry shutoff valves close?

See below for images of my Washing Machine valves. This is an older home but can't seem to get the water levers to budge. I don't want to apply too much force either way in fear of breaking something. ...
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  • 257
5 votes
1 answer
2k views

How do I tighten this appliance's valve?

I am trying to tighten a washing machine and kitchen tap valve to an angle valve. However, I noticed that the nut that I am tightening seems to be sitting tight while the valve is still moving along ...
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  • 75
4 votes
0 answers
78 views

How do I replace the shutoff valve on steel pipe? [duplicate]

Can anyone tell me what I’m working with here? I’d like to replace this gnarly shutoff valve (for a toilet) with one of the newer style quarter turns. It’s an old house, and I believe the supply pipe ...
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13 votes
3 answers
2k views

How can I add valves to supply lines when the lines are soldered to the faucet?

I am trying to replace an old faucet that my 3 yo child is unable to use because of its design. I'm new to plumbing but actively reading. I haven't seen these supply lines w/o valves before. This ...
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  • 457
1 vote
2 answers
123 views

How to remove shower faucet cartridge?

A shower valve socket wrench fails to extract the faucet cartridge: There is nothing for the socket wrench to "bite" on and it merely spins. What is the procedure and tools to remove the ...
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  • 2,746
9 votes
2 answers
2k views

How to remove this water shut off valve under the kitchen sink?

I'm trying to remove the sink cabinet but I'm stuck at these water shut off valves and the escutcheons. Water is off already. Tried to use a wrench but didn't seem to do much.
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  • 131
0 votes
0 answers
31 views

One of multiple zones calls for heat, but all return lines get hot

We just installed new gas combi boiler (Lochinvar NKC199N), it is working but there is one issue that I don't quite understand. We have 4 zones (4 different circulation pumps, 4 thermostats), when ...
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  • 21
1 vote
1 answer
57 views

What size and kind of check valve do I need?

I was told that I need a check valve for my washing machine hookup under the sink. I understand that the check valve makes sure the water only flows in one direction. I don't understand what kind of ...
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  • 261
1 vote
1 answer
57 views

Was it okay to replace only the turny-part of the faucet supply valve?

I have old galvanized pipes and old supply valves under my sink. I needed to shut them off and turn them back on, and they started leaking, as they do. I went to the store and bought replacement ...
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  • 249
1 vote
1 answer
130 views

Why do washing machines require high pressure to operate?

Edited: From most sources on the internet I see that washing machines require valves require atleast 20psi to open. Why do washing machines require more anymore pressure than would be required to wash ...
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-1 votes
2 answers
80 views

Cannot find correct stop valve size for toilet

The stop valve to my cousin's toilet needs to be replaced. It is a male threaded to the wall and 3/8 to supply line. I took it out and took it to Home Depot to get a new one and they said they didn't ...
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0 votes
1 answer
79 views

Should I replace my mains stopcock

At the moment, my mains water supply to connected to a very old supply that comes in under the back garden and in through the back of the house. I have not found an shut off value in the garden. I ...
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  • 245
10 votes
3 answers
3k views

Installer won't install dishwasher due to "old" stop valve

We just ordered a new Bosch dishwasher from Home Depot, including third-party installation. The installer they sent looked under the sink and said that because our stop valve is too old, that he ...
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  • 131
0 votes
0 answers
52 views

Is this the main water shutoff valve?

I was looking around for my main water shutoff valve, and I found this hole in the ground (about 2.5' deep and 4" dia.) with a pipe coming out of it. The pipe was uncovered - I vacuumed about 5 ...
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0 votes
2 answers
141 views

Should I use an impact wrench to loosen a plumbing nut on a boiler drain valve?

I want to replace the washer inside a boiler drain valve because it's leaking. However, I am unable to unscrew a nut that holds the valve stem in place. I have tried a variety of hand tools, so far ...
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0 votes
1 answer
59 views

Shut off valve options for bathroom sink?

I need to do some work under my bathroom sink. While there, I am thinking of replacing the old hot and cold water shutoff valves. (See photo.) What is there does not seem very high quality. Are ...
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  • 1,209
-1 votes
1 answer
385 views

ON and OFF for square-head gas valve

The picture shows the in-house gas valve for my outdoor grill. I want to make sure it is off as I never use it after purchasing the house. It has a square head and there is a nut on the other side.  ...
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  • 353
2 votes
2 answers
66 views

Ancient shower handle replacement

I need to change my shower handle stems since they are semi-broken. The handles do not include any signs or logos for who the manufacturer is. Any ideas how i can find out or even find a similar ...
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  • 21
2 votes
2 answers
536 views

Foot valve leaking? Other solutions to priming pump

I have around 4.5 metres of lift and 20 metres or more of PVC pipe from the river to my pump. This is therefore not self-priming. I have a brass foot valve (check valve with debris screen) on the end ...
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  • 598
2 votes
2 answers
180 views

Why does the water from my shower get hotter when I use a shut-off valve?

The water temperature in my shower is hard to control, so I bought a shower shut-off valve hoping to be able to conserve water by setting the temperature at the beginning of my shower and to ...
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  • 145
2 votes
1 answer
80 views

Is it possible certain outside faucets/bibbs are not controlled by a main shut off?

We have 2 outdoor faucets that are not connected to our main shut off. I have to call the city to come and turn it off the water in order to do some work on those specific faucets every single time. I ...
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2 votes
2 answers
75 views

How to winterize pipe to outdoor hose bib if the valve is lower than the outdoor bib

I've recently bought a house and am not able to contact the previous owner. I'm trying to winterize the house for the upcoming winter in New Jersey. I have an outdoor hose bib but the only valve I can ...
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  • 31
0 votes
1 answer
39 views

Physics of reducing water pressure using reducing pressure valve

I watched this video how to adjust downstream pressure. While it is clear to me how increasing it would work, by simply letting more water in from upstream, I am confused where the existing pressure ...
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  • 6,611
0 votes
1 answer
102 views

How to fix a slow drip in this exterior faucet?

Now that I've disconnected my hose for the winter, I can see that the exterior faucet/valve on the house I just moved in to has a slow drip (drips once every several seconds). I worry about the water ...
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0 votes
1 answer
38 views

Order of reducing and relief valves in pressure reduced system

Does the order, relative to the direction of the water flow, of reducing and relief valves matter in a pressure reduced subsystem (hydronic boiler in this case)? In other words, does it matter if the ...
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  • 6,611
5 votes
4 answers
2k views

How can I seal the gap around a valve handle in drywall?

I have a valve under my kitchen sink that controls the water at my outdoor spigot, and I was unable during a kitchen remodel to fully seal this area leaving an opening in the drywall around the valve. ...
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  • 59
0 votes
1 answer
250 views

New toilet fill valve's plastic back nut not compressing rubber sealing washer enough to seal cistern inlet hole

My cistern inlet hole was seeping. I bought a new fill valve, removed the old fill valve, removed the sealant applied to cistern inlet hole, and installed the new fill valve. What doesn't work ...
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8 votes
4 answers
1k views

Corroded Water Shut Off Bolt/Lever - Is this okay for now?

A couple months ago I noticed our water pressure get weaker when we used more than one appliance in the home. Today I picked up a replacement PRV but when I went to change them out I noticed that the ...
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0 votes
2 answers
55 views

Soldering lead-free quarter-turn forged brass ball valves

Do lead-free forged-brass quarter-turn ball valves need to be disassembled before soldering? Anything inside that can be harmed by the heat of the torch?
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  • 788
3 votes
5 answers
712 views

How do I remove this hot water valve?

I am trying to replace the faucet and valves in my bathroom sink, but I can't figure out how to remove the old valves. This is what the valve looks like above the sink. This is what the valve looks ...
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  • 33
7 votes
4 answers
4k views

Why does it appear that my system is designed to PREVENT me from connecting the washing machine to mains water?

My plumber, who is really into his engineering has installed brand new plumbing in my kitchen. The endpoint valves for washing machine and dishwasher are "non return" valves. Both of these ...
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