Install & Replace

[leandrohailey]

Just installed new garbage disposal and kitchen sink won't drain without being turned on. This causes dishwasher to overflow kitchen sink. I don't feel like standing at the sink anymore and turning on the disposal every time we need to wash dishes.

norton sale

[Mike_HD_OC]

Hi Leandrohailey, this is Mike The Home Depot Answer Man.

A new disposal should drain freely without being turned on. Let’s check a few details.

First make sure the drain line from the disposal is clear and free running. Is the sink on the opposite side flowing ok?

If not then the drain line needs to be cleared with a snake.

If it flows ok, then check the drain line from the disposal for a clog or restricted flow. 

If you see a whirlpool in the water when you turn the disposer on there is a restriction in the disposer drain.

If the drains are free and clear, then the issue may be with the disposer itself.

There could be an internal problem causing a restricted flow.

If you suspect this is the problem, take the disposer back to the store where you purchased it and exchange it for a new one.

I hope these ideas help solve your problem

Mike,

[10acimport]

There is a plastic tab on garbage disposals that you have to knock out if you are hooking up a dishwasher. Did you take that off completly?

[mastermike]

The issue is more likely venting.  You will need to get under the sink and see if there is a Studor vent for your kitchen drains.  Over time these vents can fail.  A Studor vent only opens when water is draining and closes when not in use.  They are designed to let air in the drain when opened and when closed keep sewer gases and smells from escaping.  Many times this vent can be unscrewed and repalced with a new vent from Home Depot and usually cost about $20.  If it does not unscrew you can cut off the old vent and replace with a new vent and coupling.  To check take vent off and try draining.  If it works then you know the vent is bad.  Mike

[Chris_HD_CHI]

Hello leandrohailey.  Welcome to the community!

This is the vent that mastermike is referring to:

It is not available online, but should be available at your local Home Depot store.

The store SKU number is 721-743.

I hope this helps,

Newf.

[mastermike]

That is not a Studor vent it is an in line vent not to be used for this . SKU#509778. It is white and listed by the Studor name.