How do you install a garbage disposal with piping?

Quote from the video:
Quote from Youtube video: If you're installing a disposer that's larger than the old one you may have to cut the drain pipe to fit with a hacksaw. Clean any excess putty from the sink flange.

What do I need to know before installing a garbage disposal?





5 Things to Know About Replacing a Garbage Disposal

  • Make sure the garbage disposal is truly broken. …
  • Save money by replacing it yourself. …
  • The job requires basic tools. …
  • Shut off the electricity before getting started. …
  • Understand the basic process of replacing a garbage disposal.


How low should garbage disposal drain pipe be?

This depth should be between 2 – 4″ (according to plumbing codes), to maintain a proper trap. You’ll notice that your trap depth is much more than that, and includes your garbage disposal. The “proper” way to correct the problem in your situation, is to lower the drain pipe or get rid of the disposal.

What size pipe do you need for a garbage disposal?

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 do you plumb a single sink with a garbage disposal?





Quote from the video:
Quote from Youtube video: Put the gasket between the sink and the backup flange and then slide on the mounting ring. And hold it in place while you try to put the snap ring. On.

What is the Allen wrench for on a garbage disposal?

The impellers then force the food through small openings, grinding it into extremely small particles. You will need an Allen (hex) wrench to fit the socket on the bottom of the garbage disposal housing. Most disposals come with a little wrench just for this purpose.

How difficult install garbage disposal?

Garbage disposal installation is a straightforward process, especially if you follow all steps and all garbage disposal parts are in working order. As long as you use the garbage disposal for getting rid of the recommended types of waste, it will help your kitchen look its best.

How do you install a garbage disposal for the first time?

How to Change a Garbage Disposal

  1. Step 1: Disconnect the Pipes and Remove the Strainer. First, turn off the circuit breaker to your kitchen. …
  2. Step 2: Apply Plumbers Putty. …
  3. Step 3: Install the Snap Ring. …
  4. Step 4: Connect to the Dishwasher Drain. …
  5. Step 5: Remove and Reattach the Wire Cover Plate. …
  6. Step 6: Connect the Drain.



What is a sink flange?

What Is a Sink Flange? A sink flange connects the sink drain to a section of pipe called a tailpiece to create a tight seal. It is made of metal and sits around the edge of the drain rather like a collar, and it usually has a grid-like section covering the drain that looks like a strainer.

What size pipe is used for kitchen sink drain?

Typically, a 1 ½ inch PVC pipe is used for sink drains, as it can adequately handle the water flow out of a kitchen sink.

What type of pipe is used for a sink drain?



PVC Pipes Polyvinyl chloride pipes

PVC Pipes



Polyvinyl chloride pipes (PVC) are commonly used as part of a sink, toilet, or shower drain line. Its plastic tubing is ideal for this kind of usage because it protects the water from rust and corrosion better than other types of pipes. This capability also makes PVC pipe incredibly durable.

Does an Insinkerator need a trap?

The plumbing code has a lot of regulations, but none is as important as this one: Every drain must have a P-trap. Shower and tub drains have to have them, toilets have built-in traps and sink drains must have them, even those with garbage disposals.

Should garbage disposal have 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.

What is the difference between AP trap and S trap?



The only difference between a P-trap and an S-trap is the horizontal length of pipe on the outflow side which allows you to connect the vent. You can turn an S-trap into a P-trap by adding this pipe — it should be at least 4 inches long — and connecting a vent to it.

Where is the P-trap on a garbage disposal?

A P-trap is the curved, U-shaped pipe under your sink that catches and traps food debris and holds water to prevent sewer gases from coming up through your drain. Clearing the clog typically involves the simple removal and cleaning of the P-trap.

Can P-trap be installed higher than drain entry?

You attach the p-trap directly to the drainage and manuever the p-traps exits into you existing drain. It is not ideal to have the p-trap below the the exit drain because water gravity has to force the water out instead of it flowing downwards naturally. They both work and have seen it many times.

How far under a sink can the P-trap be installed?

Maximum Distance



According to the International Residential Code, the maximum vertical distance between the sink drain and the entrance to the p-trap is 24 inches.

Which way should ap trap go?



When you cement it together, the straighter side of the trap- which is not as curved- should be what the 90 degree piece is glued onto. Then the curved end should be connected to the shower drain.

How should traps be installed?

Quote from the video:
Quote from Youtube video: This is important to have since these tubes or pee traps are designed to be easily disassembled. And replaced. The next pipe to be installed looks like a long elbow joint called a wall band.

Can you put a P-trap in backwards?

The outlet end of the trap pipe should be lower than the inlet when installed properly. The example shown has it backward, which creates a trap seal more than 4” and makes the drain more likely to clog—and that’s a long explanation for why a backwards trap is a bad thing.