Connecting a trap to a vertical drain with a wye fitting and a 45 degree elbow seems like a good idea.
Pvc trap to copper drain.
We offer many sizes of trap adapters to fit any type of trap and outlet drain piping you could possibly run into.
You can choose the easy to use flexible type or the conventional glue on type for plastic piping.
This isn t the best way though because you can t tighten the fitting if it leaks.
Better yet if you can find one just use a brass copper trap adapter like the following.
Measure last piece of pvc pipe and cut it to size using a pvc cutter or hacksaw.
One common method is to solder a female threaded fitting onto the copper pipe screw in a male threaded plastic fitting and finish up by gluing plastic pipe to the plastic fitting.
Or simply remove the p trap and pour out the clog.
Here is a 1 1 2 plastic p trap.
Apply pipe dope and wicking to the existing iron male fitting then install a threaded pvc female adapter tightening it with pliers.
Pvc sink drain to copper.
I want to attach the sink s tailpipe to a pvc p trap and run pvc behind the wall down into the crawlspace where it will be joined to the existing 1 1 2 copper drainpipe that runs horizontally into the main soilstack a few feet away.
But too many diyers reach for the liquid drain cleaner first and they pour in way more than the recommended amount.
And the empty trap will allow sewer gas to flow into your home.
As water drains down the steep slope at the wye it can create a siphon effect such that water will be sucked out of the trap.
The easiest way to remove kitchen and bath sink clogs is to use a snake or a barbed drain cleaning tool.
You can connect pvc or cpvc to copper in several ways.
Gwp pa the coupling would be in the crawl space under the kitchen not in the wall.
Dry fit no glue the pvc p trap and pvc pipes to ensure they fit together properly.