When it comes to installing a dishwasher, one crucial question often arises: does it require an air gap? This is particularly relevant for LG dishwashers, renowned for their efficient and reliable performance. In this comprehensive guide, we will delve into the specifics of LG dishwashers and explore whether they necessitate an air gap.
What is an Air Gap?
An air gap is a small device installed in the drain line of a dishwasher. It creates a physical barrier between the dishwasher’s drain and the sink’s drainpipe. This gap prevents contaminated water from backflowing into the dishwasher, ensuring the cleanliness and hygiene of your dishes.
Does LG Dishwasher Need an Air Gap?
Yes, LG dishwashers require an air gap. According to the manufacturer’s installation instructions, all LG dishwashers must be installed with an air gap to meet plumbing codes and ensure proper operation.
Why Do LG Dishwashers Need an Air Gap?
There are several reasons why LG dishwashers require an air gap:
1. Preventing Backflow: The air gap acts as a barrier, preventing contaminated water from the sink from flowing back into the dishwasher. This is especially important to prevent the dishwasher from draining into the sink during a power outage or if the drain hose becomes clogged.
2. Maintaining Water Pressure: An air gap helps maintain proper water pressure in the dishwasher. Without an air gap, the water pressure can become too high, causing the dishwasher to malfunction or leak.
3. Preventing Siphoning: Siphoning occurs when water is drawn out of a container due to the creation of a vacuum. An air gap breaks the siphon, preventing water from being drawn out of the dishwasher.
Where to Install an Air Gap
The air gap should be installed on the drain line of the dishwasher, as close to the dishwasher as possible. It should be located at least 2 inches above the flood level of the sink.
Types of Air Gaps
There are two main types of air gaps:
1. Loop-style Air Gap: This type of air gap creates a loop in the drain line, with the loop extending above the flood level of the sink.
2. Standpipe Air Gap: This type of air gap consists of a vertical pipe that extends above the flood level of the sink.
Installing an Air Gap
Installing an air gap is relatively straightforward. You will need the following tools:
- Adjustable wrench
- Phillips screwdriver
- Plumber’s putty
Follow these steps to install an air gap:
1. Turn off the water supply to the dishwasher.
2. Disconnect the drain hose from the dishwasher.
3. Apply plumber’s putty to the base of the air gap.
4. Insert the air gap into the hole in the countertop or sink.
5. Tighten the air gap with the adjustable wrench.
6. Reconnect the drain hose to the air gap.
7. Turn on the water supply and check for leaks.
The Bottom Line
Installing an air gap is a crucial step in the proper installation of an LG dishwasher. It ensures the safety and hygiene of your dishes by preventing backflow and maintaining proper water pressure. By following the guidelines outlined in this guide, you can ensure that your LG dishwasher operates optimally for years to come.
Frequently Asked Questions
Q: Can I install an LG dishwasher without an air gap?
A: No, all LG dishwashers require an air gap for proper operation and to meet plumbing codes.
Q: What happens if I don’t install an air gap?
A: Without an air gap, your dishwasher may not drain properly, and there is a risk of backflow, which can contaminate your dishes.
Q: How often should I check my air gap?
A: You should check your air gap annually to ensure that it is clean and functioning properly.
