There are a number of different types of waste available for sinks and basins, the pop up waste is just one type.
Plug and chain waste
This is a traditional style of waste with a plug connected to a chain.
Clicker waste
This waste’s stopper is operated by pushing on the stopper. You push once to close it and push again to open it, and so it does not have a separate control like the pop up waste.
This waste can also be referred to as the push button waste, click-clack waste or sprung plug.
Flip top waste
This simple design has a disc-shaped stopper that can be rotated to open or close the plug hole.
Captive waste
This design has a plug that sits on a bar and remains in the plughole. It is pulled up to open or pushed down to close. This type of waste is fairly common in public bathrooms as the plug cannot be removed.
Basket strainer waste
This type of waste is common in kitchen sinks as it has a strainer which will prevent food and other waste from blocking the drain of the sink by collecting it before it can pass through the waste.
The basket stopper in this waste can be operated in a similar way to the pop up waste, with a control to lift and lower it, or it can simply be pulled in and out..
Flush grated waste
These wastes are common in showers, or sinks where the waste water needs to continuously flow away, as these wastes do not fit a plug or stopper.