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Questions tagged [plumbing]

For questions about the supply and removal of water and liquid waste.

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1answer
43 views

Cold water leaking into the hot lines?

Recently the water heater (installed upstairs) had a leak so I disconnected it and removed it. There is a ball valve shut off on the cold line into the tank - I closed it to be able to open the main ...
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1answer
33 views

PEX: Is it worth replacing crimps with push connections?

I happened upon a question about PEX tubing last week here and in it there was some discussion about how push connections are superior. (If someone can point me to that question, I'd appreciate it.) ...
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3answers
59 views

Add T fitting to pipe

I was going to remove my toilet angular shut off valve to add a 1/2 inch PVC T fitting. When removing it I noticed that it is a what I believe a compression fitting. What would you recommend I do to ...
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2answers
46 views

Slip nut wrench vs adjustable wrench

I'm trying to tighten a slip joint zinc nut where a leak appears to be coming from. I found this particular wrench which seems to fit the bill (shown below and here). How is this tool better-suited ...
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0answers
28 views

Best way to connect 3/4“ copper pipe to 1/2”

My main copper water lines are 3/4" but in a new bathroom undoubtedly the valves are 1/2" so it will need to be stepped down. What is the highest quality way to do this? I presume the basic approach ...
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0answers
13 views

Sink Faucet takes a long time to get warm

New Construction Tankless water heater (1 gpm activation) PEX Tubing (the red and blue) Kitchen faucet is Moen 5923 - supposed to be 1.5gpm If I turn on another sink in addition to the kitchen sink, ...
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1answer
30 views

Why does sink gurgle after installing AAVs in attic?

I recently installed Studor Mini-Vent air admittance valves (AAVs) in my attic on the two secondary (2 inch) plumbing vents (serving laundry room and kitchen) so that the vents no longer penetrate the ...
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1answer
32 views

Tub to shower conversion plumbing questions

I'm in the middle of a tub to shower conversion but am a complete amateur when it comes to plumbing issues. The tub is out, the walls are open, we have the stand up shower kit bought. But upon looking ...
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30 views

Connect inlet and outlet to same pipe

I have a water booster pump and would like to know if it is fine to connect the inlet and outlet ports of the pump to the same pipe with a 3-way T fitting. I already have a check valve at the mains so ...
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2answers
65 views

Why is there a drain trap high on a wall above an air gap?

I realize this question is not about "home" improvement but as I had to deal with drain and vent lines recently, I was curious to note this installation at the Costco. There is what it seems a ...
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2answers
407 views

Mixing PEX brands

My house’s plumbing was redone a few years ago using Uponor PEX lines and black (ABS?) plastic fittings with stainless clamp rings. I now want to add a tee for a hose bib. My local HD just has Apollo ...
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1answer
57 views

Why does my shower's water temperature fluctuate several times per minute?

We just had two 50 gallon electric water heaters installed inline. Rheem professional classics. And a new check valve. The check valve was for the circulating pump. They had to leave the old one on....
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3answers
36 views

Proper pressure tank placement

We have a deep water well with a new submersible pump. I was getting ready to install a new pressure tank and noticed that the old one is placed after several fixtures, including the hot water heater. ...
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0answers
25 views

Adding a bathroom

I’m trying to and a small bathroom. Is it possible to put another toliet and drain on this stack? Also I can’t have the pipes much lower where I was standing to take the picture because it is where ...
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2answers
37 views

Clogged toilet in mobile home

I cleaned my toilet and flushed all the blue cleaner down. The water barely went down. I purchased a 3' toilet snake which did nothing. I then used a much longer drain snake. Still nothing. I went to ...
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2answers
40 views

Dealing with an outdoor grill with a bad gas line

I had my backyard done about 6 years ago. I put in lawn and a large patio of pavers. I also had an island built that has a built-in grill and sink, and storage underneath. The island was built of ...
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2answers
42 views

Drop ear elbow leaking at shower arm

I soldered 1/2 inch drop ear elbow to the copper pipe coming out of my shower valve that I just installed. Everything has been tight but it is leaking at the threaded female connection of the drop ear ...
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1answer
42 views

Deciphering an Asian Bladder Pressure Tank + Pump

I have a bladder pressure tank + pump combo, and I'm trying to figure it out. It came with no manual, was bought in Cambodia, and is being used on the second floor of a home using city water (which is ...
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2answers
32 views

Claw foot tub faucet riser problem

Renovating bath and bought new kingston brass faucet with hand-held shower. Room is almost finished and looks better than expected so I decided to purchase the add-on shower riser with diverter so ...
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1answer
22 views

How should I terminate water heater drain pan?

I have a water heater drain pan installed and I'd like to terminate it as close to code as is possible. The pan/water heater is currently in a closet that barely fits the pan. So unfortunately, there ...
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1answer
25 views

PVC leak under slab in outdoor waterfall feature

I've searched the internet for a solution to my problem and I can't find anything that even references a potential fix. Maybe one doesn't even exist, but I have to try, right? So, here is my problem....
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1answer
37 views

Dealing with a broken toilet flange on PVC pipe

So I'm about to tile my bathroom floor but the toilet flange broke and can't get it out I tried with a chisel and hammer but I think I got the pipe to so how can I fix this situation I got here
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0answers
45 views

Water pressure booster

I need to get a water preasssure booster for my two story home and would like to know what should I look for. I know a specific brand can't be named, so I'm looking in specifications I should look for ...
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1answer
10 views

New float valve in header tank with very slow leak

This problem is driving me nuts! The top tank for the hot water overflows at night time but is OK during the day. My conclusion is that there is a very slow leak when it should have shut off. I have ...
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2answers
23 views

T&P Valve dripping after connecting new lines to water heater

I put in a new bathroom right by my water heater, about 25 ft of hot and cold pex line. Ever since The day I turned on the valves to do a leak test, I've had a very slow drip from my temperature ...
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1answer
26 views

how to remove quarter turn tap valve with no flat parts

I am trying to remove a quarter turn tap valve from a bathroom sink mixer tap. All the guides I've found expect there to be a hexagonal part on the valve to use a spanner to unscrew it, but this one ...
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2answers
22 views

shower arm leaking when not in use

I have a shower stall (no tub). The shower head leaks water when not in use. I replaced the posi-temp cartridge and it still leaked. Then I installed a vacumm breaker which screws into the shower arm, ...
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0answers
13 views

How do I disassemble the fill valve on a Kohler toilet?

Kohler elongated toilet runs constantly after refilling. Float does not move up to shut off the flow.
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2answers
57 views

New toilet already clogging?

We recently had our bathroom redone and a new toilet installed. The piping wasn’t moved at all, we just put a new toilet in place of where the old one was. I noticed it’s only been a week or two and ...
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1answer
29 views

Can I have a wand installed in tub in addition to a 3-hole faucet?

I have a new tub being installed that takes a deck mounted faucet. I found a faucet I like which is a two handle, 3-hole type. However, it would be nice to have a wand mounted on the deck as well. Is ...
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0answers
28 views

Hot water shut off valve

While trying to turn off the hot water valve, the knob broke off in my hand. I have tried to grip it with channel locks but I cant grab it.
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6answers
3k views

Is all copper pipe pretty much the same?

Is there different levels of quality in copper plumbing pipe? I see copper pipe at Home Depot and I assume plumbing supply stores sell it too. Does pretty much everybody sell the same quality of ...
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1answer
18 views

Advisable to install a service check valve in front of a thermal expansion tank

I am installing a thermal expansion tank and the maker (Watts) recommends installing a service check valve between the tank and the pipe. While I understand the convenience factor of the SCV, my ...
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2answers
26 views

Sink drain pipe leaking

I recently replaced my bathroom sink and the new drain pipe isn't threaded like the older one. So instead of a connection to the P trap with a threaded male/female piece and a tightening ring, the ...
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0answers
18 views

What could be causing low water pressure in cold line in only one bathroom sink?

My back bathroom sink just started having low water pressure on the cold side only,,, all tubs and other sinks are fine,,, my house is less than 20 years old and plumbed with pex only,,, I have taken ...
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2answers
31 views

New washer overflows from the stand pipe

I just got a new washer and it’s overflowing from the stand pipe. My old washer was in the same stop and the standpipe never overflowed. I took a garden hose and put it in the drain and let it run for ...
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1answer
31 views

If I have a basement mixing valve, do I need one at the shower?

If I have a mixing valve at the hot water tank, do I need to have additional mixing valves at each shower/sink/tub etc?
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1answer
127 views

Connecting female thread to female threaded faucet

I am connecting a water filter to one of my taps. It’s driving me mad. The tap itself has an aerator that is readily unscrewed. The socket on the tap itself is female threaded. Here I am holding the ...
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1answer
46 views

Garbage Disposal / Plumbing Dilemma

I just purchased a new garbage disposal. The current plumbing will not allow the new disposal to fit in place. The main sewage line with a wye is in the way and I need to replace it. This is a single ...
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2answers
15 views

T&P valve line for hot water heater

What size Fitting do I need to attach to the T&P valve for my PVC pipe
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1answer
61 views

Installing 2 shower heads

I'm about to finish the rough plumbing in my shower, wife wants 2 shower heads. I'm fine with it, but what are the specs for the pipe size? Can I buy 2 shower valves with 1/2" inlets or do I need 3/4"?...
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2answers
63 views

Basement Rough-in Identification

Trying to identify what is what. I originally thought the 3.5" by the wall was Toilet, but i don't think 5" away from "unfinished" wall is enough space. So the other 3.5" (2) must be the toilet? ...
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0answers
57 views

What is the strongest glue to secure a loose shower head?

I think whoever installed the plumbing used CPVS and didn't even secure the shower head so it's loose. I don't want to open up the tiled wall so I'm going to spray some Great Stuff foam in the hole ...
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1answer
57 views

How do I use this valve properly?

I have a valve in my heating system that I don't understand. I have searched on the internet but I haven't been able to find any information on it. What I do know is that the valve's purpose is that ...
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2answers
101 views

Can electrical solder be used for joining pipe?

Some background here: I'm an electrical engineer, working on a project that is likely going to require liquid cooling. As part of the installation of this liquid cooling system, a joint needs to be ...
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2answers
53 views

Should I descale my Saniflo macerator after neglecting to do so for many years?

I've been in my home for 16 years and have a Saniflo toilet / shower combo in my basement. I have never descaled it and have never had any issues. Am I rolling the dice by not doing it or would it be ...
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2answers
31 views

Hot water flow — to one sink — low and getting worse

I've seen variations on this question, but the only times I've seen this exact question, the answers haven't been helpful... so thought I'd try here. I've got a 66 gal. electric hot water tank, 10-15 ...
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1answer
33 views

Can i use butyl caulk on a shower drain?

I'm putting in a drain onto a shower base and I have some butyl caulk laying around. It says "gutter and flashing" on it and I'm thinking since it is water proof...can I use it between the drain and ...
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2answers
33 views

What size cold water pipe supply should I run to feed 4 toilets and 4sinks?

Using pex piping. It’s feed from 3/4 but drops down to 1/2 15 feet before the bathrooms. Should I open up wall and run the 3/4 all the way in to bathroom block?
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2answers
41 views

Rerouting bathroom vent

My vent is interfering with the installation of a recessed medicine cabinet. Can I make two turns so I just move over less than a foot?