Key topics covered:

• How air locks in double trapped drain lines cause intermittent drainage issues
• Common locations where double traps occur (return box installations, attic runs, existing drain connections)
• Clear visual explanations of how air pockets prevent proper drainage
• Practical solutions and prevention techniques for each scenario
• Best practices for thorough drain line cleaning on every installation

Drain problems can seriously impact customer satisfaction, especially since new high-efficiency systems produce more condensate than older units. Learn why proper drain installation and maintenance isn’t just a technical necessity—it’s critical for customer confidence and preventing callbacks.