32
votes
Accepted
How can I remove a cement-welded sink trap?
Cut it off.
That's all apparently built with cement-welded joints. There is no practical way to un-weld them.
I would cut the pipe immediately downstream of that coupler near the wall and cement on a ...
- 138k
18
votes
Accepted
Under sink has cylindrical fixture instead of J-pipe, what is it and how to clear it out?
That is a drum trap. [Evidently also called a bottle trap in some parts of the world, per comments] They are rather old school, and out of favor in code now.
I'm more used to finding them embedded in ...
- 214k
14
votes
Accepted
Is my sink P-trap too low?
Bring your Ptrap up or your Sanitary Tee down.
AS noted by others you can cut the tail of the piece where it goes into the top of the Ptrap shorter ( thereby bringing the Ptrap up ), This will ...
- 13.6k
14
votes
Is my p-trap installed correctly?
Didn't know about trimming tailpices to fit, leading to odd
arrangement with more pipe than needed.
And more critical; that's an S trap now. The pair of vertical elbows at the wall entrance is a ...
- 214k
13
votes
Accepted
Connecting a p-trap via bending the drain stem vs the trap arm?
It's standard practice to use one or more horizontal bends on the drain stub (trap arm) to gain alignment. In this case, a single 45° elbow toward the camera should do nicely. You'll swing the trap ...
- 138k
13
votes
Accepted
Alternative method for connecting sink drain with waste pipe directly under?
Since this is NOT buried in concrete, don't use a glue-together trap at all.
Problem the first (apart from what you mention) is that the vent is too close to the trap - it needs to be at least 2 pipe ...
- 214k
12
votes
Is my sink P-trap too low?
In the OP's installation the last horizontal run going into the vertical drain appears to be slightly higher than the horizontal run coming from the disposer. I think this will cause the horizontal ...
- 21.9k
12
votes
Accepted
How do I connect my sink to the drain in the wall?
Go to your local big-box store (or even better, a locally owned plumbing supply place) and get a standard P-trap kit.
It will include all the pieces you need as well as instructions on how to install ...
- 47.3k
11
votes
Can elbow fitting be used to line up drain tailpiece with trap
The best repair for this problem is to cut the trap from the drain pipe, glue on an ABS 1 1/2 inch (or same pipe diameter as existing pipe) coupling and than a short section of new pipe long enough to ...
- 11k
11
votes
Accepted
How long must the horizontal run be to make an S-trap a P-trap?
Those are both S-traps, since you have not drawn a vent, which is what actually makes the difference. Most P traps in finished locations have vents in the wall you can't see. Without a vent, if enough ...
- 214k
10
votes
How do I plumb this kitchen sink to stop the leak and improve drainage
try setting it up like this. you will have to trim the dishwasher feed tail pipe a bit (be sure to bring it up high like @DMoores pictures to keep the sink from draining into the dishwasher.
- 2,275
9
votes
Alternative method for connecting sink drain with waste pipe directly under?
Ended up moving the waste pipe in the basement for a cleaner look. Let me know what you guys think.
- 173
8
votes
Do I need water traps on my sinks with dry-well greywater collection?
Not only you should have water traps (called P-trap)
But you should also have air vents pipes up to the roof, to assist water drain.
Some appliances like toilet come with water trap build in, for ...
- 17.4k
7
votes
Is my sink P-trap too low?
You DO realize you can (perhaps even "are supposed to") cut excess length from the slip-fit trap parts? They are supplied long, but don't need to STAY that way. You can cut most of the tube leading to ...
- 214k
7
votes
How long must the horizontal run be to make an S-trap a P-trap?
As already mentioned, the P-trap requires a vent on the horizontal section, or it's still just a long S-trap. That said, you can't just put a vent on the top bend of an S-trap, since that results in ...
- 1,119
7
votes
Transparent P-Trap to help diagnose smell issue is wrong size
Your likely problem is indeed improper venting.
You ask about ways to diagnose and confirm the problem.
When you have a foul smell, drain the P trap and measure the amount of waste water removed. You ...
- 16k
7
votes
Is P-Trap installed correctly?
This is not the correct way to install a p-trap. The pipe exiting the sink should run vertically into the top of the p-trap, then exit the p-trap horizontally back into the wall and connect to the ...
- 5,749
6
votes
Accepted
How do I plumb this kitchen sink to stop the leak and improve drainage
If you reconfigure so that the trap connects directly to the tailpiece you'll have all the height you need. In fact, you'll need a tailpiece extension (or new, longer tailpiece).
Clean up all the ...
- 138k
6
votes
Is my p-trap installed correctly?
@Ecnerwal hit several of the big issues here but there may be more.
There is definitely a venting problem. A good rule of thumb on venting with a P trap is if the P trap can't "see" the ...
- 8,754
6
votes
How do I adjust plumbing when converting a double kitchen sink to a single?
Your dishwasher will connect to the port on your disposal unit (green arrow) and the drainpipe/crosspiece from the double sink (marked with red "x") will be discarded.
The tailpiece from the ...
- 5,605
6
votes
Kitchen sink slow drainage and P-Trap installation
Flex pipe is a disaster that usually doesn't wait long to happen. What you have now constitutes an S-trap.
The outlet of the P-trap should be slightly above the drain entry in the wall. About a 2% ...
- 214k
5
votes
Is this plumber's putty?
Plumber's putty is usually soft. If it is hard (you mentioned chiseling it off), it's more likely some sort of epoxy putty that someone used to try to repair a broken pipe, and those things rarely ...
- 15k
5
votes
Transparent P-Trap to help diagnose smell issue is wrong size
As mentioned, you need to vent it properly, and retrofitting is easier with an Automatic Air Vent (AAV).
Just to show you what it may look like (I am not associated with it).
Grabbed from Waste ...
- 6,374
5
votes
Accepted
My bathroom sink isn't aligned with the P-trap. Could that be causing the smell?
The fact that it's an S-trap with no vent is far more likely to be the root problem than the horizontal offset (which is certainly odd in itself) is.
Assuming you're not up for running a proper vent, ...
- 214k
4
votes
Is my sink P-trap too low?
The flange piece connected to the sink looks like it isn't mounted flush and could cause leaks. Readjusting the garbage disposal might fix that. It also looks like you have enough room to get rid of ...
- 80.5k
4
votes
Accepted
Will this sink piping configuration result in standing water in the pipe?
I'll try to answer your questions as stated.
Minimum height difference
I'm not sure if there is a code for this, but it's good practice to have the bottom of the disposal drain higher than the top ...
- 27.9k
4
votes
Accepted
Drain trap leaking at compression joint
Try loosening the chrome nut at the wall and then reset the trap and tighten it up. I know "they" say to hand tighten but if the two pieces don't line up perfectly, then a little help is needed. Give ...
- 80.5k
4
votes
How to make the P-Trap sloped
Most of them are 89 degree bends (not 90 degrees) so they have about 1 degree of slope which is all that is needed.
most diagrams exaggerate the slope so that the reader can see it, and so that the ...
- 20.8k
4
votes
How do I plumb this kitchen sink to stop the leak and improve drainage
Honestly if you want to do this right you need to completely change your start and finish. The start I would highly suggest with installing a garbage disposal. Dishwasher into garbage disposal, go ...
- 48.3k
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