Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [drain]

Use this tag for plumbing-related drains such as under sinks, including when something is clogged it is helpful to include this so it is clear it is a drain clog.

30
votes
5answers
115k views

Why does my dishwasher back up into the sink, but running the disposal allows it to drain?

When my dishwasher runs the kitchen sink backs up. I have a two tub sink and only the side nearest the dishwasher with the garbage disposer backs up. Running the disposal for a few seconds causes the ...
17
votes
10answers
4k views

What can cause a never-frozen indoor copper drain pipe to crack?

The 1-1/2" copper waste pipe than runs from our kitchen just up and cracked two days ago along its length, and for no apparent reason. The crack is in a section of pipe that runs vertically through ...
17
votes
8answers
75k views

What can I do about my drains constantly getting blocked?

The one thing I have tried to do about this is use those foaming and non-foaming drain unblockers regularly. That has just been money down the drain, pardon the pun. I suspect that unblockers only ...
13
votes
4answers
10k views

What is this mysterious pipe in my back yard?

There's a plastic pipe with a vent cover in my back yard that runs to a green cap in the middle of the yard. What is this for? I don't have a septic tank. Update: this picture shows the entire ...
12
votes
6answers
27k views

How can I prevent water from pooling in the street in front of my house?

I have a problem with water pooling in front of my house. Between my Sprinklers and the rain there is always a puddle where my lawn meets the street. What do you think is the best way to stop this ...
12
votes
4answers
30k views

Do I need a vent for extending a drain to a new bathroom addition?

I am building a new full bathroom on what used to be my back porch. I am planning to extend the existing drain at a cleanout and to run it outside the house underneath the floor. I need to know if I ...
12
votes
3answers
22k views

How can I reseal a shower drain on a pre-formed shower base?

The shower drain in my first-floor bathroom leaks. Based on looking from the basement below, it seems the leak is at the point where the drain assembly should clamp to the shower base (which is pre-...
11
votes
8answers
131k views

How to fix stinky bathroom sink?

It smells like really musty water, but the water itself does not smell or taste bad at all. Only happens when I run the water, so it doesn't make the room smell, just when you fill something up or ...
11
votes
7answers
3k views

slow draining bathtub - is a frozen pipe a possibility?

Our bathtub has recently started draining very slowly (bathtub fills with water during a normal shower and takes a while to completely empty). This problem has coincided with winter, and I'm wondering ...
11
votes
2answers
89k views

Does a plumbing vent need to penetrate the roof? (Can it penetrate a wall?)

We're going to move our washer/dryer to the garage (the front loader needs to sit on concrete to keep it from shaking our house to the ground). I'll need to add a washer drain to the garage for the ...
10
votes
6answers
148k views

Sink tailpiece doesn't line up with trap

After installing a new bathroom sink, the drain tailpiece doesn't line up with the trap coming out of the wall. I've seen flexible accordion hoses for this, but I think that violates code (P3002.3.1)....
9
votes
6answers
25k views

Should I use plumbers putty to install a sink drain?

I'm installing a Push Button (not pop-up) drain in my pedestal sink. A rubber washer goes between the metal drain and the sink (another rubber washer goes under the sink). Is it still appropriate to ...
9
votes
3answers
7k views

Do tub drains of the same diameter ever have different thread-per-inch counts?

My tub's drain flange has had the little cross piece inside it broken out, which means I cannot screw a grid drain into it. Right now, it's totally open and an invitation for my toddler to drop stuff ...
8
votes
5answers
7k views

Bath and sink connected on same pipe - bath gurgling when sink emptied

The bath and sink are connected to the same pipe as shown on schematic below - pipe has a gradient downwards towards the main pipe (yes, I have found some people fit it with an upward gradient!). ...
8
votes
2answers
28k views

How do I install a sink in a room that doesn't have a drain vent?

I want to install a sink in my attached garage where there is no existing plumbing. I will be running new water supply and drain pipes to mains behind a nearby wall. I'm concerned I will need a ...
7
votes
6answers
135k views

Can p-trap be installed higher than drain entry?

I have p-trap entry in drain at 16" above the floor. However, vanity that I got has lower drawer which has top at about the same height. There is also about 4" clearance behind drawer. I was told that ...
7
votes
5answers
130k views

White solid drain pipe vs black flexible corrugated pipe for a french drain

Which one is preferable if you have a straight line 2 feet deep trench in mostly clay soil? I'll put either one in a sock with gravel. There are some roots around the trench so I thought the solid ...
7
votes
4answers
60k views

Why are there bubbles in my bathroom toilet and sink?

I have had a lot of really odd things happen in my bathroom this weekend and I want to make sure it is nothing too serious. Ok so when I was taking a shower I heard the toilet bubble up. A few ...
7
votes
5answers
12k views

Do I have to periodically pour water down my basement floor drain to maintain the p-trap water seal?

There is a sewer smell coming from my basement. There are only a couple entries to the sewer in the basement: A laundry sink that acts as the drain for a water softener (which regenerates every few ...
7
votes
7answers
90k views

How do I retrieve a detached plunger from a bathtub drain?

I have an old bathtub drain assembly that is similar to this: As far as I can tell, the linkage broke off completely due to old age. If I unscrew the trip lever and cover, it's not attached to ...
7
votes
1answer
1k views

Why does my water heater's drain line rejoin the outlet pipe?

I know very little about water heaters and plumbing. Done some minimal work, but never water heater hookup. I need to replace my 20 year old AO Smith 50 gal gas water heater in a house I've owned ...
7
votes
1answer
2k views

How do I replace a section of a 4" cast iron pipe with PVC?

I am working on our upstairs bathroom and plan on moving some of the fixtures around to a different side of the room. This means I need to make changes to where the drain comes into the stack (I want ...
6
votes
3answers
3k views

Is Liquid Plumr or Drano safe to use with a septic system?

Just as the title asks, is it safe to use products like Liquid Plumr or Drano in a Septic system?
6
votes
1answer
20k views

How does an external tower style bathtub drain work?

I have this style tub drain and can't figure out how it works. Does it simply block the flow of water when lowered? Or is there something more complicated happening? My tub has stopped draining and ...
6
votes
3answers
1k views

How to remove shower drain

My shower drain is clogged. I want to open the drain cover, but I can't get it off (see picture of drain cover) How should this be opened: prying it off or unscrewing it? Regards, UPDATE This ...
6
votes
2answers
4k views

Remove old toe touch bathtub drain stopper with no screw

I have an old toe touch bathtub drain stopper that is stuck in the closed position and doesn't stop the water escaping either. I want to remove the stopper. I removed the cap the cap by pulling on ...
6
votes
5answers
25k views

Is it wrong to connect multiple J-bends (traps) together?

My tenants recently told me that they have constant clogging problems with their bathroom sink and had me come take a look at it. I found the following 3-trap configuration: This was done because the ...
6
votes
3answers
21k views

Connecting a P-trap to a female drain connector in the wall

I am replacing a bathroom vanity and while I'm doing that, I'm also replacing the p-trap for the sink (mostly because I want one with a drain, but also because I have to raise the height a couple ...
6
votes
11answers
91k views

How can I prevent my HVAC condensate drain line from freezing?

Last night, my heat (forced air) suddenly stopped. Today, a plumber figured out that my heater is 90% efficient, produces lots of condensate, and the drain line had frozen. We went outside and saw ...
6
votes
1answer
4k views

Is a toilet drain permitted to run through I Joists?

It was suggested by a plumber, but is it common practice? The I joists are 11 7/8" but a 3.5 or 4" toilet drain line seems like a large hole to be cutting even if it's in the middle of the joist's ...
6
votes
1answer
53k views

Can I move my washer and dryer 10 feet to the right?

My basement is being renovated, and I'd like to have my washer and dryer moved about 10 feet to the right of their current location. They would still be against the same wall, just further down. The ...
6
votes
1answer
2k views

Why does dirty water come into my second sink when the garbage disposal is on?

For a while I have been having problems with using the garbage disposal. The large sink empties very slowly and sometimes I put the disposal on to get it going. The only problem is that disgusting ...
6
votes
1answer
12k views

How can I lengthen my vent stack and are there any negative effects in doing so?

I have observed that when we receive a lot of snow here in Ontario, at least one of the drain vents on my roof is covered by snow. While after one winter in the house I have not yet observed any ill-...
6
votes
2answers
7k views

How to remove turn-style tub overflow cover?

I've tried looking all over for a solution, but I've yet to find a solution that matches my situation. The cover I have (I think) is supposed to turn so the hole is downwards so you can remove the ...
5
votes
6answers
2k views

Dishwasher Hose Clamps won't open

This will come across as a silly question but I cannot open up the hose clamp for my dishwasher's drain tube. I need to unhook/open the tube, clean its head, then reattach. The metal clamp simply won'...
5
votes
4answers
6k views

Sink clogged completely when using NaOH drain cleaner

I used a drain cleaner containing sodium hydroxide (NaOH) to unclog it. I followed the drain cleaner's instructions to the letter: pour the NaOH into the pipe entrance. pour hot water. As soon as ...
5
votes
2answers
12k views

How to snake a bathtub with no overflow drain?

Our upstairs bath tub has been taking longer and longer to drain and my wife has finally tasked me to fix it. Yesterday I literally emptied an entire bottle of Liquid Plumber down the drain (...
5
votes
1answer
1k views

Why does a laundry drain need to be installed at a minimum height of 30"?

My laundry machine doesn't work properly in my new flat (the wash cycle never ends), and the instructions specify that the common cause of my problem is that the drain is too low (my drain is indeed ...
5
votes
13answers
24k views

Solution for A/C Condensate Drain Line that doesn't require emptying a bucket of water every day?

I have a split A/C system in a room that runs on low 24 hours a day during Summer that unfortunately cannot be connected to any drain or pipe and which therefore requires a bucket outside to be used ...
5
votes
3answers
21k views

How can I install the drain for my reverse osmosis water filter?

I have purchased a Whirpool Reverse Osmosis Water Filter which installs under the sink. I am trying to install it and have run into an issue with the drain: the revers osmosis filter has a red tube ...
5
votes
3answers
17k views

How do I clean a sink overflow drain?

I want to clean inside the hole of the bathroom sink that is used to control overflow. I can stick my finger in there, and rub off a small circle's worth of stuff, but I'd like to clean it more than ...
5
votes
4answers
4k views

Sink P-Trap doesn't line up with Drain pipe

How can I get my sink drain lined up properly. The drain coming out of the wall is welded together and it doesn't have the connector that catches the threaded side of the p-trap. It's' also about an ...
5
votes
2answers
29k views

How can I hook up my dishwasher drain properly?

The problem I am installing a new Bosch dishwasher and have run into a conundrum hooking up the drain. The parameters are the following: The dishwasher drain hose has a rubber bit on the end marked ...
5
votes
1answer
4k views

How to replace bathtub pull-up drain stopper with screen/mesh for hair?

I have a bathtub which also is a shower, and it has a twist-and-pull type drain. Currently I never actually use the bathtub for taking a bath, only showers. Unfortunately it keeps getting clogged with ...
5
votes
3answers
22k views

Why does water and gunk back up through the overflow hole in the bathroom sink?

When I run the water in my bathroom faucet it sometimes (but not all the time) slowly starts to creep up the overflow hole and pour back into the sink. Included with the water is black and grey gunk. ...
5
votes
2answers
8k views

How should I troubleshoot and unclog an outdoor drain?

Our back concrete patio directs water to a nearby outdoor drain. The drain consists of what seems to be a 5 Inch green PVC pipe with a plastic grate cover that sticks out of the ground a few inches. ...
5
votes
1answer
4k views

How should I install a curtain drain in my crawl space?

Since I have wet areas in the crawl space, I have decided to dig a trench at the perimeter of my crawl space to take care of the water. This would also allow me to install rigid foam insulation on ...
5
votes
1answer
2k views

Is this an appropriate drain design for adding a shower?

I recently took on the challenge of adding a shower to my existing downstairs bathroom. The bathroom is inside what used to be the garage so it is far away from any existing vents. After some demo, ...
5
votes
2answers
6k views

What do I do with a sewer pipe (toilet rough-in) full of cement?

I have a problem that is mind boggling. I bought a house and am now just getting ready to put a toilet in the basement, which has a cement slab. I just took the cover off the rough-in expecting the ...
5
votes
3answers
235 views

Are the washer drain and electrical outlets underneath up to code?

My daughter got her washer and dryer only to find out that the water supply/drain is 6 feet from the ground. Obviously none of the hoses can reach. I am aware that the maximum height for washer ...