HYHW drains and vents

Function of the component labeled '7' in the waste system diagram?

The component labeled '8' is a _______ that allows access to the waste system for cleaning.

The component labeled '9' is used for which of the following?

Each fixture drain must be ______ to prevent the passage of noxious sewer gases.

The largest vertical drain pipe is called the ______.

The largest, bottom-most horizontal waste pipe is the ______.

What is the purpose of Y-shaped cleanouts in the waste system?

Waste pipe outside of the building line is termed the ______.

What is the primary purpose of a plumbing vent system?

The vent system helps maintain _______ in the plumbing system.