A drain air gap may look like a small plumbing accessory, but it plays an important role in many water treatment setups.
What Is an Air Gap?
An air gap creates physical separation between a drain line and the wastewater system. This helps reduce the risk of backflow.
Where It Is Used
Air gaps may be used with water softeners, water filters, and standpipe drain setups. The correct fitting depends on the system.
Check Local Requirements
Plumbing rules can vary by location. Homeowners should follow local codes and manufacturer instructions.
Final Thoughts
A water filter or softener air gap helps create a cleaner, safer drain connection when installed correctly.