Drain Planning and Fabrication

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In this essential HVAC School tutorial, we dive deep into proper drain planning and fabrication techniques that will save you from costly callbacks and water damage disasters. Learn why aluminum coil systems require more attention than older copper coils and how to prevent the #1 service call in the industry.

Key topics covered:

Planning drain locations to prevent slip hazards and standing water issues
Correct trap installation
Proper venting techniques and why vent height matters
The critical 1/4" per foot pitch rule and how to test it
Float switch installation best practices for primary and auxiliary pans
How to prevent double-trapping in various installations
Insulation requirements for horizontal drain lines

Whether you're a seasoned pro or new to the field, these drain fabrication fundamentals will improve your installations and customer satisfaction. Remember: a properly installed drain system is your reputation's best protection!

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