Get matched with top dishwasher installation pros in Fairfield, CT

Yes, a dishwasher needs an air gap to prevent backflow. Additionally, in many locations, air gaps or another measure to prevent backflow are required for building code compliance. There are alternatives to an air gap, like a Studor vent or a loop and trap design, but an air gap is the simplest and most popular solution.  

Some common signs you have a dirty dishwasher filter are:

• Food sticking to your dishes even after a thorough wash cycle

• Odor coming from your dishwasher

• Stains left on dishes and utensils

• Water pooling in your dishwasher

• Food stuck to parts of the dishwasher, like the racks, walls, or sprayer arm

The frequency for cleaning your dishwasher filter depends on your usage habits. If you run the dishwasher daily and don't scrape or rinse dishes before loading, you should clean the filter about once a month. For those who use it only once or twice a week and rinse items beforehand, cleaning it every three to six months may be sufficient. A clear sign that your filter needs cleaning is a musty smell, even after a wash cycle. Regularly cleaning the filter is important to prevent food buildup and clogging over time. It can be helpful to add this maintenance task to your calendar to stay on schedule.

Some signs that your dishwasher is going out include:

• The door no longer latches 

• Dishes are still dirty after a cycle 

• Dishes are cold after a cycle 

• Rust inside or outside the unit 

• Cracks inside the dishwasher tub

• Water collecting at the bottom or outside the unit

If your dishwasher is not energy-efficient or is older than 10 years, you should also consider replacing it. Repairing an older model may be more expensive than replacing it with something newer and more energy- or water-efficient.