A garbage disposal has two possible connecting points: the main drain pipe and the dishwasher drain pipe. The main drain pipe will always be connected, but depending on your needs, the dishwasher drain pipe may or may not be needed.

What size pipe connects to garbage disposal?

1 1/2-inch

Food and water goes straight through the drain into the disposal. The disposal also has a standard 1 1/2-inch pipe connection on the side to connect to your kitchen’s drain piping.

How should a garbage disposal be plumbed?

If you have a double sink, the best way to plumb a disposal is to run its discharge tube directly to a tee below the opposite sink. The tube must drop about 1/4 in. in order to drain properly.

What size PVC comes out of garbage disposal?

Some older sinks may have drains that connect to a 1 1/4-inch tailpiece, but most modern drains have a 1 1/2-inch outlet. All the pipes that connect to the tailpiece, including the P-trap assembly and all the horizontal extensions, are either 1 1/4 or 1 1/2 inches in diameter.

How do you install a PVC garbage disposal?

Quote from Youtube video: To do this you're going to use the hammer. And screwdriver to simply knock it out of place. Now we can go ahead and install the garbage disposal. With the sink flange in place simply connect the

Does garbage disposal need P-trap?

Like the other drains in your home, your garbage disposal requires a P-trap because of the safety and health benefits. A P-trap does several things when incorporated into your plumbing, from trapping debris and grime to keeping sewer gasses from entering your home.

How do you’re plumb a kitchen sink with a garbage disposal?

Quote from the video:
Quote from Youtube video: Screw the tailpiece nut onto the strainer to attach the tailpiece. Hand tighten the nut align the tee with the disposal outlet and mark on the tailpiece.

What is a garbage disposal flange?

If you’re putting in a garbage disposal, you’ll need a disposal flange. The flange is a ring that connects the disposal to the sink and is slightly sloped to allow water to run unimpeded into the drain; it’s like a mounting bracket for the disposal.

What is needed to install a garbage disposal?

In addition to an appropriate garbage disposal, you’ll need the following equipment to complete the installation:

  1. A screwdriver.
  2. A disposer wrench.
  3. A hacksaw.
  4. Water pump pliers.
  5. Plumber’s putty.
  6. Electrical cord.
  7. Safety supplies, including goggles and a dust mask.

How do you install a garbage disposal flange?

Underneath the sink, stack the fiber gasket, backup flange and mounting ring, and slide them onto the underside of the flange. Install the snap ring by pulling it open and snapping into place. Tighten the screws evenly using a screwdriver so they’re firmly against the backup flange and clean up any excess putty.

What if new kitchen sink drain doesn’t line up with existing pipes?

In general, if the P-trap doesn’t line up with the drain, you can adjust the length and height of your drainpipes by cutting them or simply slipping them in and out of their fittings.

How do you install a splash guard for a garbage disposal?

Quote from the video:
Quote from Youtube video: Position it just basically just slides right in just make sure it's locked it's nice and secure. And go ahead and make your attachments. If you have the air gap your holes will connect.