Floor Drain Vent Distance

October 25, 2022

Vent Requirement For Basement Floor Drain (Canada)

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You might be wondering how the tiny floor-standing sink at the back could possibly need care, let alone ventilation. All drain systems, including floor sinks, are vented by the combined drain and vent system. For example, New York City plumbing codes for 2014 eliminated the need for vents if the floor-standing sink is within 15 feet of the main vent channel. Depending on your building codes, you can either connect the floor sink to the main sewer line or to a sump pit. Venting a Combination Venting System

Per the NYC 2014 plumbing code, combination vent systems must connect to a dry vent inside the structure or to a horizontal vented drain outside. According to the standards, the diameter of the vent should be half the floor sink pipe itself. The flow of the water line

Distance from the main ventilation stack

Location of the drain pipe (Remember it is in the center with the sink)

Procedure

Depending on the size of the pipe and the dimensions of the sink, drill a hole in the floor.

Kurdistani I have designed the plumbing for a building I got a comment from my consultant saying "check the vent distance to the floor drain" please if anyone can help me explain this. Cordially

speedball1 I designed the plumbing for a building, got a comment from my consultant saying "check the distance between the vent and the floor drain", please if anyone can help me explain this. Sincerely, Tom

Milo Dolezal I assume they are talking about the distance from your floor drain (trap) to the nearest wall where the drain goes from horizontal to vertical, therefore becomes vented. In my area, all floor drains are considered "plumbing fixtures" and must have their own dedicated vent. The length of the "dirt arm"—a section of horizontal pipe between the trap and the wall, where the drain turns vertical—is mandated by the plumbing code. Example: a 2" pipe can be "a pipe can be" up to 5' long before it connects to San Tee, so it becomes vented. speedball1 , vent. The length of the "dirt arm" - a section of horizontal pipe between the trap and the wall, where the drain turns vertical - is mandated by the plumbing code. Since all of our floor drains are installed in the slab, the lateral, ("dirt arm ") goes straight into the main house and not a vertical chimney. Example: a 2" pipe can be "a pipe can be" up to 5' long before it connects to San Tee it becomes therefore ventilated. Sincerely, Tom

Milo Dolezal Tom:

I guess it's local terminology: Dirt Arm is a horizontal piece of drain pipe that extends from the trap to SanTee. The floor drain is vented, like any other plumbing fixture, with a vent pipe to the attic, or connects to other vents on the anti-siphon line.

Connecting the second SanTee above the original SanTee means we have connected to the vent pipe of the original plumbing fixture, making it what is called "Wet Vent". Here, wet vents are not allowed. Connecting the second SanTee above the original SanTee means we have connected to the vent pipe of the original plumbing fixture, making it what is called "Wet Vent". Here, wet vents are not allowed. There has been much rumbling and grumbling over the past nine years about UPC's reluctance to adopt new materials, fittings and practices commonly used in 90% of the country - air intake valves and wet ventilation, for example. Here we have to run "Loop Vent" in the islands, which makes the whole setup too complicated - not to mention the Loop Vent setup which takes up most of the valuable sink cabinet space. Here we have to run "Loop Vent" in the islands, which makes the whole setup too complicated - not to mention the Loop Vent setup which takes up most of the valuable sink cabinet space. We've kveted long and hard enough here that most municipalities have changed code to allow their use, with a number of caveats and provisions, of course - Single use for single fixtures, relief vents there are no other vents on the limb, etc. . .