Can somebody please help me out with this question. I have a double sink in the kitchen and the right side has a garbage disposal and the left side is empty underneath. There is a y fitting under the sink so the waste goes down the drain but it actually goes to the other side of the sink and shoots up making a mess all over thre place. Any advice would be appreciated and thanks for all the help.
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Replies
Assuming that the drain isn't
Assuming that the drain isn't clogged, the Y will need to be rearranged to fix the problem. It's something of a black art to get this to work right, though it's gotten a lot easier with the new rubber fittings.
In addition to a dish washing sink and a disposal sink, I'd like a spitting sink, just to keep it gentile.
"...I'd like a spitting sink,
"…I'd like a spitting sink, just to keep it gentile."
So, you're saying that Jews don't spit?
:)
Adam
When you say Y I think
Adam
When you say Y I think you mean the whole assembly forms a Y. What you have is two horizental trap arms going into a tee fitting? Making a shape like a goal post? Or do you mean a actual Y waste line fitting? When you say the waste shoots up, do you mean from the side with out the disposal?
First thought that comes to my mind is, if it is a tee, is the tee baffled. Some have a center divider built into the center of the plastic tees so the waste from the left side is forced downwards when it hits the baffle, and the same for the right if not a baffled tee may help.
If it is a Y (actualy spelled Wye) waste line fitting you may have a slight clogg beyond the fitting. Stuff in the disposal, you run water realize stuff is in disposal (because the sink is filling), you keep water running, turn disposal on. The sudden rush hits slight clog and back up the other side of sink.
If you can a photo would help.
Wallyo
I will post a picture later on tonight. Thanks for taking the time to reply.
heres the picture of underneath my sink.the garbage disposal waste goes into the left side instead of going down the d/Users/adammarks/Desktop/PICT0004.JPGrain.
Adam
A photo is worth a thousand words thanks. You have what is called an S trap
vs a mordern P trap. S traps are no longer allowed in new work in most areas. Reason is they do not vent correctly. The waste builds in the disposal as I said in my above description, water backs up, turn on disposal and it takes the path of the least resistance up to the other sink. The actual waste line has no chance of taking a breath, and being the path of least resistance.
What may help is to replace that last turn before going down the floor with a tee, then extending the other end of that tee with a riser and caping it off with a AAV or air admittance valve.
http://www.oatey.com/Plumber/Shared/ProductGroupDetail/278/In-Line+Vent.html
Idealy it should rise above the flood rim of the sink but installing it as high as you can should help. I would while you are at it replace that solvent weld trap with a standard trap that disconnects. When that diamond ring falls down the drain it helps to undo quickly.
A good plumbing supply house will guide you to the correct parts. the photo is the closest I could find MINUS THE DISPOSAL.
Wallyo (I am not a plumber, just play one on TV)
Yeah, that's a jackleg setup,
Yeah, that's a jackleg setup, with the wrong type of tee for the situation, or the right kind of tee, installed incorrectly. The S trap doesn't help things, though it's not clear that it part of the problem.
Simplest thing is to rework it with the left-hand sink drain coming straight down to the trap (which, as someone else said, should be the threaded variety). Above the trap install the tee, sideways, and connect the "bottom" of the "T" to the outlet of the disposal.
While doing this you can lower the trap a couple of inches, if needed, to gain yourself some working room, and you can replace the S trap with a P trap, putting another tee sideways on the drain pipe, with the P trap entering the "bottom" of the T and a pipe with AAV coming out the top (ie, "side" of the T). The pipe with the AAV should rise as high as you can reasonably manage it inside the cabinet.
Here's what I did, a bit
Here's what I did, a bit unusual (two traps), but people here have said that it doesn't violate any rules. It works very well.
Thank you all for taking the time to reply,I realluy appreciate it. I will tackling the project sometime this week. opefully I will have good results
Is the "in cabinet" vent really necessary if one is already exsisting within a few feet?
In the ideal situation, no. So long as the "real" vent is within about 3 feet, and the pipes are sloped right, the AAV is probably unnecessary. And in a "bad" situation an AAV won't fully replace the function of a "real" vent.
But in this situation it's a nice bit of insurance.