Proper Venting for Plumbing
Systems: What You Need To
B L O G | A B E T T E R P L U M B E R
Learn how a professionally cared-for
plumbing vent system can ensure that
your home is free from toxic sewage
gases that are harmful to your health.
Part of your bathroom and kitchen
renovation involves plumbing vent
systems. Learn about this part of your
plumbing system and how it works to
maintain your drainage system.
Discover the different types of vents,
and learn the importance of calling
the professionals for help.
If you’re planning to remodel your kitchen
or your bathroom, you will surely have to
deal with the plumbing tasks that come
with it. Among these involve plumbing
vent systems, which are usually more
difficult to handle.
The purpose of vents in plumbing is to
allow waste water to be smoothly flushed
down the sewer system or the septic tank
and prevent harmful gases from entering
the home. If vents are not installed
properly, your home will stink of sewage
So, if you’re planning to renovate your
home, ensure that your pipes are
properly ventilated, especially if you are
going to get a new set of fixtures like
sinks, tubs, or toilets.
Types of Vents
How many vents do you need for your
plumbing system? Each fixture will have a
vent that will be connected to the main vent
or the vent stack. Depending on where your
fixtures are located and how close they are
to the main stack, the vent attached to them
will have a different name.
1. True Vent
If your sink, tub, or toilet is close to the vent
stack, the ventilation for it will be coming
from the true vent. The true vent is a vertical
pipe attached to the drain line and the main
vent. Air pushes down from the main vent
and directly through the true vent. If your
fixture is located far from the vent stack, it
will be connected through a different vent.
Air pushes down from the main vent and
directly through the true vent. If your fixture
is located far from the vent stack, it will be
connected through a different vent.