What would you like to do?
Your kitchen sink should already be vented if there is a p-trap draining to the wall. if it is an s-trap it is not vented and not to present code requirements. The dishwasher drain goes into the side of the disposal and the disposal should drain to the trap. A separate vent is not required for the disposal or dishwasher as the trap for the sink is what requires a vent.
18 people found this useful
Was this answer useful?
Thanks for the feedback!
Can you install a new faucet with an extra spray outlet and use the dishwasher vent hole in the sink thereby connecting the dishwasher drain directly to the disposal?
Answer dishwasher drain \n. \nNot sure what you mean by dishwasher vent hole, but you probably mean the air gap fitting. Some dishwashers connect directly to the disposal, …with the tube going up a little to prevent stuff from going back to the dishwasher. But as for removing the air gap fitting, if you have it already, it may depend on where you are. California plumbing code requires a dishwasher air gap fitting above the flood level rim, even if you have a disposer, but I'm not sure if the national code also requires. In any case, if a code requires it, it may be a good idea not to remove the air vent. I would check your local code. You may want to consider a faucet with a built in sprayer instead.
Most disposals should have instructions with them. Assuming a double sink, choose which side you want it on. Take the existing drain loose from both sides and out of the wall …or floor so that it will not be in the way while installing the disposal. On the side for the disposal, remove the stainer basket from that side. It is held in either by a large nut or with a plate with 3 screws. Once this is out, clean the surface in the sink where the basket was. Apply a small rope of plumbers putty to the disposal neck and install it in the hole. With this installed, put the rubber gasket/ring around the neck under the sink and install the disposal. Hold the disposal up against the sink and rotate the locking ring until it comes to a stop. To rotate the ring completely, you can use a phillips head screw driver in the holes in the locking ring for more leverage. Make sure the outlet on the disposal is facing the other side of the sink. Connect the drain back to the other side of the sink and the wall or floor. There is an outlet tube supplied with the disposal that curves down. If your configuration of drain allows you to use this, connect it to the other side of the drain. You can use a straight tailpiece instead and run it to the T in the center if that is easier. Every drain is going to be different so you will have to figure out what works for you. There needs to be an outlet for power and a switch for turning it on. If there is no power and switch already existing, it will have to be run and a common spot for the switch is in the center of the face board on the front of the cabinet under the sink or inside of the cabinet under the sink. It really isn't that hard to install one.
You are installing granite counter tops Dishwasher drain is connected above elbow on one of the two sinks Do you need the air vent for the dishwasher?
This is generally a local code thing. We do not require it in our area and a loop is acceptable. Check with your code guy!
Pipe wrench, screw driver, tubing cutter, wire strippers
Lowe's charges $119 if you have someone come out and do it for you.
The highest 4 inch pipe should have a vent on it, or directly above a toilet junction Above the flood level rim of the fixture it is servicing IT does not mean the toilet…
Every toilet should be wet vented with the sink in the bathroom.
It is usually hooked up to your kitchen sink p-trap or garburator under the sink, which is vented. This is the only vent you need for drainage.
I'm a licensed plumber in Michigan and own my own business. We charge $119 for labor. This is for a replacement only. If you need the mounting flange replaced too or any repip…ing has to be done under the sink, this would incur extra costs.
The only issue would be the drain hole. I couldn't find a measurement of what it is. I would imagine a new sink would have a standard size hole. I do not know about an older o…ne. I have never seen a smaller drain for a garbage disposal but that doesn't mean they are not available.
If there is no vent off the kitchen sink you would need to install an in-line vent.
1-1 1/2 hrs
to change out a disposal with a 1/3 hp parts and labor $250.00 - $450.00
You first remove the old sink strainer and fit the one that comes with the Badger unit. Tight fit of this is critical. Next you simply hold the unit under the receiver ring an…d push up and rotate it into locked position. It can now be turned to fit drain angle. -If on a twin sink, you will need to alter the connector pipe.
Codes differ everywhere, - however if I as renovator install these appliances, I always put each one on a dedicated separate breaker.
Yes, one trap for both sides or if on a single sink. The disposal does not seal out sewer gas which is what a trap does.