In plumbing, the term “waste” refers to the tube that is attached to the base of a sink, washbasin, or sanitary device (such as a toilet or bidet). This tube is made of metal and allows sewage to run through it, through a trap, and then into a drain, while also acting as a barrier to potential blockages.
The top of the drain is called the shoulder or flange and this is the metal part you see in the drain, the finish of the flange will generally match the finish of the sink faucets.
Wastes are manufactured in standard sizes to fit any sink waste hole and are typically supplied with a specific type of stopper, plug, or grill. Bathroom sinks typically have a waste diameter of 32mm (1.25 “), while sinks, showers, and kitchen sinks are typically 40mm (1.5”).
There are several different types of debris available for sinks and sinks, pop-up debris is just one type.
A pop-up drain, or pop-up assembly, for the type of pipe fitting that joins a sink, lavatory, or bidet to a drain pipe in the drain. They incorporate a plug or cap that is operated with a knob. You can also find pop-up waste in other sanitary ware.
The pop-up drain control is usually a lever that you pull or a knob that you turn. It is often located behind or on the faucet fixture, or it can be attached to the overflow that is usually under the faucet, in the sink. To operate the pop-up cap, the lever is pulled up to close the cap and pushed down to open, or the knob is turned one way to open and the other to close.
Other waste systems
Plug and chain scraps are a traditional style of scrap with a plug attached to a chain that can be used to block the plug hole.
Clicker waste has a plug that is actuated by pushing it. You push once to close and push again to open, so you don’t have a separate control like pop-up drain. This waste may also be referred to as a push button waste, click-clack waste, or spring plug.
Flip-top wastes have a simple design and a disc-shaped cap that can be rotated to open or close the cap hole.
Captive waste has a plug that sits on a bar and remains in the drain. Pulls up to open or down to close. This type of waste is quite common in public restrooms as the plug cannot be removed.
Basket strainer debris is common in kitchen sinks as you have a strainer that will prevent food and other debris from blocking the sink drain by collecting it before it can pass through the debris. The basket stopper on this drain can be operated similarly to the pop-up drain, with a control to raise and lower it, or it can simply be pulled in and out.
Lattice wastes are common in showers or sinks where wastewater needs to flow continuously, as these wastes will not fit in a plug or plug.
Slotted debris or non-slotted debris?
Most scraps will be available in slotted and unslotted formats. The type of residue you need will depend on whether the sink has a built-in overflow or not. An overflow from a sink helps with drainage by allowing air to enter the drain when the sink is full. A sink without an overflow will act like a vacuum when full and drain more slowly, so if it has a built-in overflow it’s a good idea to make sure it’s working properly. Most sinks have a built-in overflow; these will require slotted debris. This is so that when the water passes through the overflow it can flow through the holes into the drain. It is important to ensure that the debris slots line up with the overflow so that the water can run efficiently. Non-slotted debris does not have holes and should only be installed in non-overflow systems.