#CLICKINSTALL DRAIN ASSEMBLY MATETIAL INSTALL#

It definitely is tougher doing double kitchen sink plumbing than single sink plumbing even though they both only have a single drain. Be Precise When Doing Your Double Sink Drain line Plumbing In this article, I will talk a little more about double sink plumbing and how it’s done. It gets even more complicated if you have a dishwasher that uses the double sink drain lines too.

#CLICKINSTALL DRAIN ASSEMBLY MATETIAL INSTALL#

Although there is still only one faucet, you still need to install two drain assemblies. The problem comes in when you go to plumb them. Although the sink size is doubled, they are still fairly easy items to install. They can wash dishes in one side and prepare food in the other at the same time. Again, don't overtighten.Ĭonfirm that the continuous waste pipe and the trap arm slope slightly downward in the direction of the water flow, then check all of the drain connections to make sure they are tight.Many people like the convenience of having a double kitchen sink. Tighten all slip nuts with channel-type pliers. Mark and cut the trap arm as needed if it is too long to fit the space, then reinstall the P-trap assembly. Make sure the trap arm has a slight downward angle toward the drain outlet.

Push the trap bend up into the tee fitting on the tailpiece while sliding the trap arm into the drain outlet at the wall.Īdjust the trap pieces as needed to create the most direct path from the sink to the drain outlet. Slide a slip nut and washer onto the straight end of the trap arm. The trap bend fits onto the bottom of the tailpiece tee fitting, while the trap arm extends into the drain outlet in the wall.Īssemble the trap bend and trap arm together loosely with a slip nut and washer. The drain trap assembly includes a U-shaped trap bend and a J-shaped trap arm. If you have a double-basin sink but neither basin will have a garbage disposal, the tee fitting is installed on one basin's tailpiece, with the side outlet of the tee accepting a continuous waste pipe from the second basin. Note: If your sink has a single basin, it will not require a tee fitting on the end of the tailpiece-the tailpiece will lead directly down to the drain trap.These do not need to be overly tight the plastic threads can be damaged if you use too much force. Tighten the slip nuts slightly more with channel-type pliers. Adjust the pieces as necessary, making sure the continuous waste arm has a slight downward pitch toward the tee fitting. Reinstall the tailpiece and continuous waste pipe, along with the tee, leaving the connections hand-tight. Now, cut the tailpiece and continuous waste pipe to length with a PVC tubing cutter or a hacksaw. Hold the tee fitting up to the tailpiece and waste pipe, and mark cutting lines on both pipes, where they will fit into the tee fitting.

The pipe should slope downward slightly toward the tailpiece. Let the straight end of the pipe extend past the vertical tailpiece on the sink basin. Temporarily connect the curved end of the continuous waste pipe to the garbage disposal's drain outlet, using a slip nut and washer. Temporarily install the tailpiece onto the sink strainer, using a slip nut (and slip washer, as applicable). The side outlet on the tee fitting will accept the continuous waste pipe coming from the garbage disposal (or the other sink basin), while the bottom outlet will continue on to the drain trap. The drain tailpiece is a short vertical length of straight pipe that joins the sink strainer to a tee fitting. Install the Drain Tailpiece and Continuous Waste Pipe.Our installation will include a double-basin sink with a garbage disposal fitted to the right basin. Leaving the fittings loose will allow you some room for adjustment.īefore continuing to the next steps, remove the old sink and install the new sink in the countertop. If you need to lower the sanitary tee in the branch drain, it is a good idea to wait until the other parts of the drain are test-fitted before gluing and securing the fittings permanently. Keep in mind that the drain height must leave enough room for removing the trap and cleaning it out. So, the sanitary tee fitting serving as the drain outlet has been lowered (right photo). Our example is a case in point-the new sink left insufficient room for connecting a standard drain assembly to the drain outlet in the wall (left photo). If you find that the existing drain outlet is not low enough to accommodate the depth of the new sink, you (or a professional) will need to open the wall and lower the position of the sanitary tee connecting to the drain pipe in the wall. This can be a somewhat complicated job that requires cutting away the back of the cabinet and the wall surface. The Spruce Home Improvement Review Board.

Clickinstall drain assembly matetial