Some bathroom and kitchen sinks have “S” traps like this one that drain into the floor. It’s important that sewer gas doesn’t get trapped in them. Proper venting of drain lines ensures that a small ...
Does NY code allow for the venting of a kitchen island sink via air admittance valve similar to the one shown here as option 2.
Q. My new kitchen is going to have a large island with my double-bowl sink in it. The young plumber and my contractor want to use some newfangled thing that just fits under the cabinet. They call it ...
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