Description
A waste coupling, often referred to as a sink waste coupling or drain waste coupling, is a plumbing component used to connect the drain of a sink or basin to the plumbing system. It is a crucial part of the drainage system in kitchens and bathrooms.
The waste coupling is typically located beneath the sink, connecting the sink’s drain to the pipe that leads to the sewer or septic system. It allows water and waste to flow from the sink into the plumbing system while preventing foul odors and gases from coming back up into the living space.
The waste coupling consists of various components, including a strainer or waste basket that captures solid debris, a tailpiece that extends from the sink’s drain, and a trap that retains a small amount of water to block sewer gases. The trap is essential for preventing unpleasant odors and providing a barrier between the living space and the drainage system.
These components are often made of materials such as PVC (polyvinyl chloride) or metal, depending on the specific plumbing requirements and local building codes. Proper installation and maintenance of the waste coupling are important to ensure effective drainage and to prevent clogs or leaks in the plumbing system.
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