Hot answers tagged

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 ...
user avatar
  • 106k
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 ...
user avatar
  • 137k
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 ...
user avatar
  • 137k
13 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 ...
user avatar
  • 13.3k
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 ...
user avatar
  • 106k
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 ...
user avatar
  • 19.7k
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 ...
user avatar
  • 30.1k
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 ...
user avatar
  • 10.8k
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.
user avatar
  • 2,215
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 ...
user avatar
  • 137k
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 ...
user avatar
  • 106k
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 ...
user avatar
  • 7,589
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 ...
user avatar
  • 14.4k
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 ...
user avatar
  • 55.2k
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 ...
user avatar
  • 26.6k
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 ...
user avatar
  • 55.2k
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 ...
user avatar
  • 46.2k
4 votes

What kind of j-trap will fit this pipe?

You have half (which is about 1/3 of, but it's one of two parts) a union trap there. Another union trap might fit it - if not, you can install the whole new union trap on the pipe. Being black, it's ...
user avatar
  • 137k
4 votes

Wall drain too high for p trap

As noted in a comment, I would suggest looking for a shorter tail piece without the fancy, tall nut (which, I'm sure, works very nicely for hand-tightening). Normally the nut would be less than an ...
user avatar
  • 30.1k
4 votes

How do I connect my sink to the drain in the wall?

Below is a picture of what you're looking for. It should be simple enough but pay attention to slope from the trap to the waste pipe connection at the wall. It should be 1/4" drop per foot. You ...
user avatar
  • 7,589
4 votes
Accepted

What is this coming off the drainpipe near the p trap?

Possibly an alternative form of "trap primer" for a floor drain (or other rarely used device with a trap) that is being kept from drying out. Each time you use this sink, a little bit of ...
user avatar
  • 137k
4 votes

Is there a limit to the change in direction of a p-trap assembly at the vertical swivel?

That appears to be fine, though I would agree that an additional picture from a different angle would be helpful. So long as the relationsip of trap parts is maintained, all the rotational freedom ...
user avatar
  • 137k
3 votes

Can I make my own p-trap

Don't know what country you're in but from a physics perspective you could certainly do it. You seem to know the basics about the depth of the weir. The other things you need to consider is to avoid ...
user avatar
  • 7,589
3 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 ...
user avatar
  • 13.7k
3 votes
Accepted

apply plumbing cement on p-trap

You do not use cement or any sealant on the threads of a p-trap. It would not do any good and would bond the threads and so prevent adjustment. The purpose of the threads in these drain elements is to ...
user avatar
  • 19.7k
3 votes
Accepted

New sink drain not aligned with trap

You should be able to turn the clamp nut by the wall... ...which will allow the horizontal portion of the drain connection to pull out of the wall. It may have enough slide connection so it can be ...
user avatar
  • 61.5k
3 votes

Is it ok that my laundry drain trap is tilted?

It looks like the hole drilled on the outlet side of the p-trap needs to be enlarged so the hub of the fitting can slip in, thus leveling the p-trap, thus keeping it from sticking out of the wall, ...
user avatar
3 votes

Is my sink P-trap too low?

Maximum water trap height is 4", that's the distance between bottom of P trap and height of P trap outflow.
user avatar
3 votes

P trap won't drain from water softener

It was the slope, when cutting in the p trap I changed the slope of the existing 2" drain pipe, and caused it to back up. Re-did it and ensured the slope was correct and checked with a hose and a ...
user avatar
  • 41

Only top scored, non community-wiki answers of a minimum length are eligible