4 Reasons You Shouldn’t Leave a Mop in a Wet Sink


A wet mop is an excellent tool for cleaning concrete, stone, and tile floors. Wet mops are used by all kinds of businesses ranging from restaurants to machine shops. But as with just about everything else, there are right and wrong ways to use a wet mop. For example, a big no-no with wet mops is leaving one sitting in a wet sink. This is a bad idea on many levels.

Alsco, a nationally known provider of uniform rentals, linens, and floorcare products, delivers both wet and dry mops to customers who request them. They recommend never leaving a wet mop sitting in a wet sink after use. They say wet mops should always be rinsed out and hung up to dry.

Are you curious to know more? If so, below are four reasons you should never leave a mop in a wet sink. To be clear, we are referring to string mops intended to be used with a mop bucket.

1. The Risk of Germs

Mops, mop buckets, and wet sinks are havens for germs. The biggest problem with leaving a mop in a wet sink is that limited airflow prevents the mop head from drying. The longer the mop remains wet, the more opportunity for germs in the mop or the sink to propagate. The last thing you need is a germ-filled wet sink and a mop that carries those germs.

2. The Risk of Odors

Even if germs are not a concern – which is hard to imagine – there is the issue of odors. A damp mop left sitting in a wet sink will begin putting off noticeable odors right away. Those odors might be especially foul if the mop is not rinsed out first. And unfortunately, it only gets worse from there.

A string mop sitting in a wet sink will attract mold and mildew. So in addition to any odors already in the mop as a result of the work it performs, additional bad smells will be promulgated as mold and mildew grow. In just a matter of days, a moldy mop can cause the entire area to stink.

3. It May Be Unhealthy

Although this does not apply in every setting, mops left to sit in wet sinks could create a health hazard. This sort of thing is most often observed in restaurants. Why? Because wet sinks (sometimes known as slop sinks) are not necessarily separated from dish washing sinks by large distances.

A wet sink located just a few feet from a dish-washing sink can be a health hazard if a mop is left sitting in it. Germs in that sink could be carried to the dish-washing area via circulating air. Dishes that come clean out of the wash sink could be contaminated before they go back into circulation.

4. It Might Be Illegal

Last but not least, leaving a mop sitting in a wet sink could be illegal in your local area. Depending on the kind of business you run – and again we are usually talking restaurants here – health regulations require wet sinks be kept clean whenever they aren’t in use. A wet sink with a mop sitting in it is certainly not clean.

The proper way to deal with a wet mop after use is to rinse it out and hang it up to dry. The mop bucket should also be cleaned and turned over to drain excess water so it can dry. And if dirty mop water was poured down the wet sink drain, the sink should also be cleaned and sanitized as well.