Cool Island Drain Vent

Good question Tom because you dont have a wall which will simply allow you to go from the drain pipe uphill to the vent stack as we usually do.

Island drain vent. With this method the vent pipes enter the island cabinet from below the floor rise as much as possible inside the cabinet and then join the water drain pipe. Obviously a vent pipe in a kitchen island cant do that. A regular kitchen sink adjacent to a wall has a vent hidden in the wall that connects to the drain.

The first drawing shows a simple method but one that is not accepted by all municipalities or plumbing inspectors. If you dont have a vent on your sink drain you can use one of these air admittance in line vents from Oatey here. 36 out of 5 stars 123.

The two island sink photographs just above show a recent 2014 island sink installation in. Vents up to 160 DFUs on a branch and up to 24 DFUs on stack. An accessible cleanout shall be installed in the vertical portion of the foot vent.

So it wont plug up the vent must rise six inches above the overflow level of the sink before the pipe goes horizontal. Measured horizontally in front of the cleanout opening. I need your expert advice.

The vertical fixture drain - drainage fittings must be used for all portions of the vent located below the floor - horizontal drain and vent piping must be sloped at a minimum 14-inch per foot department of island vents mr. One solution is to install a vent that loops under the floor. Ideal for island sinks remote bathrooms and remodeling jobs by eliminating the need to tie into a vent stack.

This technique allows the water to drain off at a regular speed and provides fresh. Protective rubber sleeve provides grip for installation and keeps valve free from debris. I dont know a thing about plumbing but my dad was a plumber and I remember him saying theres a special way to install the drain pipes in my island so theres never any sewer gas in my kitchen.