Table of Contents
Venting a kitchen sink is a very common problem these days in almost every home because it prevents the pipes from clogging so that it can enhance the fresh air.
Everyone needs to know how to vent a kitchen sink because it is the need of every kitchen and home. In our homes, most vents are connected to the main vent that extends vertically to the roof of the house.
But if there is a window in the way you should set the vent horizontally for that area of the window. The thing that you should take in mind for venting a kitchen sink under the window is to make sure that the vent runs in an upward slope for getting the optimum results.
Unfortunately, most homeowners don’t know how to vent a kitchen sink that may be under a window or not. But here we provide you complete guidelines on how to vent a kitchen sink.
The kitchen sink venting is not a difficult process. If you do this carefully you can easily vent your kitchen by yourself.
You may also like to read: 10 Best Kitchen Sinks
What Is Plumbing Venting?
Venting is a process that carries the waste and water through the pipes from home without the gurgles or fumes. This requires an air passageway behind the water. The kitchen sink vents also eliminate the smell, smoke, and dirt of your kitchen through these venting pipes easily.
Types of the Sink Vents
A true vent is a vertical pipe that is connected to the drain line and travels from the roof having no water running through it. If there is a fixture that is closed to the stack on the top of the floor then its upper part serves nicely as a vent.
This pipe is also called an auxiliary vent which is connected near the fixture and runs up and over the main vent. We can attach it directly behind the fixture or the horizontal drain line.
Air Admittance Valve
This air admittance valve opens the air in waste drains, the gravity closes it to keep the sewer gases from escaping back into the room.
How to Install a Vent Pipe for a Kitchen
The kitchen is the busiest room in the homes because we can not live without eating and this process is completed with the help of kitchens. Different foods and drinks are made in this room. So a lot of smell is produced in this room and for this a good ventilation is essential.
If your kitchen sink vent pipe doesn’t work properly, it becomes too difficult to drain the water and the pipes get blocked and leave very bad smells.
So follow the following guidelines in venting the kitchen sink, you will need to have these items first in your home.
- Hack saw
- PVC sanitary tee of 2 x 2 and 1 x ½ – inch
- Chalk line
- Tape measure
- Three long-sweep elbows of 1 x ½ – inch
- PVC cement
- Hole saw of 1 x 5/8 – inch.
Step# 01 – Installing a Sanitary Tee
In the first step, you have to put the sanitary tee inside the drain line of the sink, so this means that the installation process will happen at the wall cavity of the kitchen where we have to get the drain line of the sink.
Step#02 – Insert the PVC Pipe
Take a tape measure and measure a 2-inch long pipe and then cut it with the help of a hacksaw. Now take a sweep elbow and fit it into the pipe make sure that the face of the pipe is direct to the wall and glue to the tube.
Step#03 – Draw a Line Beyond the Window
In this step, you have to check out the kitchen window above the sink and locate a point where the pipe is run vertically. Now snap the chalk-like into the point, and the upper slope of the point should be less than ¼ inch per foot.
Step#04 – Hole Drilling
Now takes a drill and makes a 15/8 inches hole in every stud point that will raise the vent and the elbow. Make sure that each hole is online, an ideal hole is that can be used in the process easily.
Step#05 – Cut 1 ½ – inch Length Pipe
Now cut the pipe which is1 ½ – inch Length Pipe and reach the mounting point of the vent kitchen sink from the elbow. Now insert this pipe in the hole that you do in step 4, for long-lasting use the PVC cement and glue it to the elbow. Then take another elbow and stick the pipe into the other side, making sure that its outlet’s face is always upward.
Step#06 – Drill a Hole
In the last step for installing the kitchen sink pipe in the vent use a drill to make a hole of 1 ⅝ inch. Now through this hole extend the pipe so that it can reach the attic. Connect it with the primary vent stack so that it can run horizontally to the stick.
Why Is Venting Necessary?
If you try to empty a bottle quickly with a narrow mouth it will gurgle and glug and empty slowly. Now open a vent cap of any plastic gas container and let it flow smoothly. The vent hole allows the air to enter from the back of the liquid and produce a quick and glug-free flow. The vent stacks in the household plumbing work the same way.