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A lot depends on the local Plumbing code. There is a national code as well as your local state code. If this is a commerical application I believe that each basin has to have its own trap.

answerThe "National Plumbing Code" is a MODEL code with a great name that has fooled a lot of people. (Kind of like Paris Hilton). Whether your state or municipality has adopted a code or not, this suggestion will work and pass about anywhere: On the inch-and-a-half pipe or nipple protruding from the wall install a "wye" with the branch aimed toward the far bowl, run the branch over to the p-trap on the tailpiece coming down from the strainer. Done on that side. On the straight run through the barrel of the wye, head toward the bowl on the near side. Get a "disposal kit" from the BIG BOX selling all the imported stuff. That's a straight piece of inch-and-a-half tubular with a flange on one end, and a "tee" with an internal baffle. Install the baffle tee on the vertical line between the p-trap and strainer on that second bowl, pointing it straight at the disposal outlet. The flanged piece runs from the disposal outlet to the branch of the baffle tee.
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Why does your garbage disposal back into the dishwasher?

The sink drain is blocked somewhere after the disposal. take apart and clean or renew sink drain.


How can you repair a leak that is visible on the side of your garbage disposal under your sink?

If the sink/sink drain fitting connection, sink drain fitting/disposal connection, dishwasher/disposal connection, disposal/drain elbow connection are what are leaking they can either be tightened or have gaskets replaced or other sealing methods used. If the disposal is leaking elsewhere the disposal needs replacement.


Why does the water from the disposal side of the double sink drain into the dishwasher?

Probably the drain hose from the dishwasher isn't high enough to keep the water from running back . The hose should be above the level of the disposal at some point. Some states require an "air gap" which is a device that is placed in the drain line to prevent this. Some states require a simple high loop in the drain hose. Many dishwasher manufacturers are now installing backflow preventers in the dishwasher.


What is the proper way to run a condensate drain with a trap Does it need a vent?

The condensate drain on the a-coil should have a trap and the trap should be vented for proper operation . The vent should rise above the top edge of the drain pan in the unit. Their should be a capped clean out before the vent.


Does a bar sink have a overflow drain?

Most of the one's I have run across do not have an overflow. Mainly used for disposal, dumping out drinks, etc, not for washing so overflow not really an issue. Also, most are stainless which do not lend themselves to an overflow drain.

Related Questions

What is the purpose of a garbage disposal flange and how does it contribute to the functionality of a garbage disposal system?

The purpose of a garbage disposal flange is to connect the garbage disposal unit to the sink drain. It helps to seal the connection between the disposal unit and the sink, preventing leaks and ensuring proper drainage. This component is essential for the proper functioning of a garbage disposal system by allowing food waste to be efficiently and safely disposed of through the sink drain.


How do I connect a dishwasher to a garbage disposal?

To connect a dishwasher to a garbage disposal, you will need to install a drain hose from the dishwasher to the disposal unit. This allows the dishwasher to drain its water into the disposal. Make sure to follow the manufacturer's instructions and use the appropriate fittings to ensure a proper connection.


How can I properly connect my garbage disposal to my dishwasher drain?

To properly connect your garbage disposal to your dishwasher drain, you need to ensure that the drain hose from the dishwasher is securely connected to the inlet on the garbage disposal unit. This connection allows the wastewater from the dishwasher to flow into the garbage disposal for proper disposal. Make sure to follow the manufacturer's instructions and use the appropriate fittings to create a tight and leak-free connection.


How can I safely dispose of acid down the drain?

It is not safe to dispose of acid down the drain as it can be harmful to the environment and cause damage to pipes. Instead, contact your local hazardous waste disposal facility for proper disposal instructions.


How can I properly connect a garbage disposal to a dishwasher?

To properly connect a garbage disposal to a dishwasher, you need to ensure that the dishwasher drain hose is connected to the disposal unit's dishwasher inlet. This connection allows the dishwasher to drain its water into the disposal unit for proper disposal of food waste. Make sure to follow the manufacturer's instructions and use the appropriate fittings to secure the connection.


Can you run the dishwasher if the garbage disposal is not connected?

The disposal has to be in place so that the drain on the dishwasher is connected. If you do not have a disposal or are removing it, there is a extension tube for the drain that has the dishwasher tube in it. The disposal does not have to work for the dishwasher to drain. The water is run through the disposal so that any food particles get ground before going in the drain. After a while, the disposal will begin to smell if it is not run.


How do I properly connect a dishwasher to a garbage disposal?

To properly connect a dishwasher to a garbage disposal, you need to ensure that the drain hose from the dishwasher is securely connected to the inlet on the garbage disposal unit. This allows the dishwasher to drain its water into the disposal unit for proper disposal of food waste. Make sure to follow the manufacturer's instructions and use the appropriate fittings to create a tight and leak-free connection.


Why is my dishwasher not draining properly, and could it be related to issues with the garbage disposal?

Your dishwasher may not be draining properly due to a clog in the drain hose or pump, a faulty drain pump, or a blockage in the garbage disposal. If the garbage disposal is clogged or not working properly, it can affect the drainage of the dishwasher. It is recommended to check and clean both the dishwasher and garbage disposal to ensure proper drainage.


Why is my garbage disposal not working and causing my sink to not drain properly?

Your garbage disposal may not be working properly if it is clogged with food particles or if the blades are dull or damaged. This can cause your sink to not drain properly because the disposal is not able to break down the food waste effectively. It is important to check and clean the disposal regularly to prevent clogs and ensure proper functioning.


How to connect the dishwasher drain hose to the disposal unit?

To connect the dishwasher drain hose to the disposal unit, first locate the drain hose connection on the disposal unit. Next, attach the hose to the unit using a hose clamp or a screwdriver to secure it in place. Make sure the connection is tight to prevent leaks. Finally, run a test cycle on the dishwasher to ensure proper drainage.


Why is my garbage disposal draining slowly?

Your garbage disposal may be draining slowly due to a clog in the drain pipe, a buildup of food debris, or a malfunction in the disposal unit itself. Regular maintenance and proper use can help prevent these issues.


Why is my kitchen sink clogged with a garbage disposal?

A kitchen sink can get clogged with a garbage disposal due to food particles, grease, or other debris getting stuck in the disposal unit or the drain pipe. Regular maintenance and proper use of the garbage disposal can help prevent clogs.