How many fixtures can you put on a 2 inch vent?

24 fixture units
The Plumbing Code states that a vent can handle 24 fixture units. A bathroom sink of 1.0 F.U., a bathtub of 2.0 F.U., and a shower of 2.0 F.U.

What are the requirements for a waste stack vent?

Section 913 Waste Stack Vent 913.1 Waste Stack Vent Permitted A waste stack shall be considered a vent for all of the fixtures discharging to the stack where installed in accordance with the requirements of this section. 913.2 Stack Installation

Can a combination waste and vent system be used?

A combination waste and vent piping system, limited for use as a means of venting the traps of floor drains and laboratory sinks, shall be permitted in conjunction with horizontal branch waste piping of an independent flammable oil waste system or acid waste systems, and as described under indirect wastes and special wastes.

Where do wet vent drains and water closet drains connect?

Each wet-vented fixture shall connect independently to the vertical wet vent. Water closet drains shall connect at the same elevation. Other fixture drains shall connect above or at the same elevation as the water closet fixture drains.

Can a dishwasher drain connect to a kitchen sink vent?

Residential kitchen sinks with a dishwasher waste connection, a food waste grinder, or both, in combination with the kitchen sink waste, shall be permitted to be vented in accordance with this section. The island fixture vent shall connect to the fixture drain as required for an individual or common vent.

How does the wet vent connect to the sink?

In this plumbing system, the wet vent will connect to a vertical drain leg beneath the toilet. The tub will connect in the same way. These two are both connected to the sink’s drain line.

Can a toilet be connected to a wet vent system?

For your wet vent system to work properly, your copper fittings or tubes should be in good condition. If you are connecting a group of bathroom fixtures with a wet venting system, and the toilet is one of the fixtures, the toilet will have to be the very last fixture that’s connected to the wet vent.