Sink

A sink is a plumbing object in The Sims series. They are typically used to wash hands—which provides a slight hygiene boost—as well as dishes in the absence of a working dishwasher. Sims that cannot reach a working sink or dishwasher will throw the plate or the meal into the garbage.

Certain games and expansion packs include additional interactions, such as taking sponge baths, getting a glass of water, brushing teeth, or washing one's face. While these interactions are typically faster and quicker than using a shower or bathtub, they restore less hygiene than a proper shower or bath.

Sinks are available in buy mode in the Plumbing and Bathroom section. Some sinks are standalone, while others must be placed on a counter. Sinks will become dirty over time, and may occasionally break and need to be repaired.

The Sims
Sinks in The Sims are very simplistic compared to other games. Sims will typically wash their hands in a sink after messy activities, such as cleaning or using a toilet, unless they are very messy. Sims will also use sinks to wash dishes. Unlike later games, Sims do not need to brush their teeth over a sink.

The Sims 2
Sims can get drinks from sinks, which can be used to lower their body temperature on a hot day. Babies can be bathed in the sink by older Sims. If a medicine cabinet is placed in front of a sink, Sims will be able to brush their teeth and wash their face using the sink.

The Sims 3
Sinks function similarly to those in previous games. Sims, with the exception of slobs, will wash their hands after messy activities, such as using the toilet. They are also used to wash dishes in lieu of a dishwasher, and can be used for brushing teeth. Neurotic Sims can check sinks to make sure they are off, which will provide a positive moodlet.

In Generations, children and teens can booby trap the sink to spray water at Sims who try to use it. The booby trap will not be activated if a neurotic Sim checks the sink, or if a Sim brushes their teeth over the sink, as neither of these activities involve turning the taps on.

The Sims 4
Sinks in The Sims 4 retain most of the functions from the previous games. Sims can use it to wash their hands or brush teeth, and clean empty plates. An empty can also be "washed" by the player manually dragging it, in a similar fashion to adding and removing items from the inventory. Sims with the clumsy trait have the tendency of dropping plates whilst washing them.