Dishwashers: Does Yours Have An Air Gap? Find Out Now!
What To Know
- An air gap in a dishwasher is a small opening located at the highest point of the drain hose where it connects to the sink drain.
- If the drain line becomes clogged or the water pressure drops, an air gap allows air to enter the drain hose, creating a break in the water column and preventing contaminated water from flowing back into the dishwasher.
- If your dishwasher doesn‘t have an internal air gap, installing an external air gap is a simple DIY project.
The presence of an air gap in a dishwasher is a crucial aspect that often raises questions among homeowners. In this blog post, we will delve into this topic, exploring the purpose, significance, and prevalence of air gaps in dishwashers.
Purpose of an Air Gap
An air gap in a dishwasher is a small opening located at the highest point of the drain hose where it connects to the sink drain. Its primary purpose is to prevent contaminated water from flowing back into the dishwasher during a power outage or plumbing issue.
Significance of an Air Gap
An air gap plays a critical role in maintaining hygiene and preventing potential health hazards. Here’s why:
- Prevents Backflow: If the drain line becomes clogged or the water pressure drops, an air gap allows air to enter the drain hose, creating a break in the water column and preventing contaminated water from flowing back into the dishwasher.
- Eliminates Cross-Contamination: This break in the water column ensures that water from the sink or other sources cannot enter the dishwasher and contaminate clean dishes.
- Complies with Plumbing Codes: In many jurisdictions, the installation of an air gap is mandatory as per plumbing codes.
Prevalence of Air Gaps
While air gaps are essential for ensuring dishwasher hygiene, not all dishwashers come equipped with them.
- Modern Dishwashers: Most modern dishwashers incorporate an internal air gap as part of their design. This design eliminates the need for an external air gap.
- Older Dishwashers: Older dishwashers, especially those manufactured before 2015, may not have an internal air gap. These models require the installation of an external air gap to comply with plumbing codes.
Identifying an Air Gap
Locating an air gap in a dishwasher is relatively straightforward:
- External Air Gap: Look for a small plastic or metal device connected to the drain hose where it meets the sink drain.
- Internal Air Gap: Check the dishwasher’s manual or consult with a plumber to determine if your specific model has an internal air gap.
Installing an External Air Gap
If your dishwasher doesn‘t have an internal air gap, installing an external air gap is a simple DIY project:
1. Gather the necessary materials, including an air gap kit, screwdriver, and pliers.
2. Disconnect the drain hose from the sink drain.
3. Connect the air gap to the drain hose and the sink drain.
4. Secure the air gap using the provided screws or bolts.
5. Reconnect the drain hose to the dishwasher.
Troubleshooting an Air Gap
If you suspect your air gap is malfunctioning, here are some troubleshooting tips:
- Check for Clogs: Inspect the air gap for any debris or blockages. Remove any obstructions to ensure proper airflow.
- Ensure Proper Installation: Verify that the air gap is securely connected to both the drain hose and the sink drain.
- Replace the Air Gap: If the air gap is damaged or worn out, replacing it will restore its functionality.
Recommendations: Air Gaps – A Vital Safeguard
While not all dishwashers have external air gaps, their presence is crucial for maintaining dishwasher hygiene and preventing backflow. By understanding the purpose and significance of air gaps, homeowners can ensure their dishwashers operate safely and effectively.
Frequently Asked Questions
Q: Why is an air gap important for a dishwasher?
A: An air gap prevents contaminated water from flowing back into the dishwasher during power outages or plumbing issues, ensuring hygiene.
Q: Do all dishwashers have internal air gaps?
A: No, older dishwashers may require an external air gap to be installed.
Q: How can I tell if my dishwasher has an air gap?
A: Check for an external device connected to the drain hose or consult the dishwasher’s manual for information on an internal air gap.
Q: Can I install an external air gap myself?
A: Yes, installing an external air gap is a relatively simple DIY project.
Q: What should I do if my air gap is not working properly?
A: Inspect for clogs, ensure proper installation, or consider replacing the air gap if necessary.
