The Sprinkler Company Inc. / Blowout basics
Gravity Draining vs Sprinkler Blowout Explained
Gravity draining vs sprinkler blowout depends on the installation, not just the slope of your lawn. A drain fitting you can see does not prove that every buried branch will empty by itself.
Gravity draining vs sprinkler blowout: check the design
Hunter cautions against relying on manual draining in a system that was not designed for it. Look for an installation plan, drain locations or earlier service notes. If you do not have them, tell the technician. An honest gap in the records is more useful than a guess about the plumbing.
Reference: Hunter: Winterizing Your Irrigation System
Mention changes to the system
A new garden zone, moved valve or repaired section can change the original layout. Share any drawings or photos from that work. Even if the main lawn has always drained a certain way, a newer branch may need separate attention before the property is ready for winter.
Keep a note of the method used
After service, ask which water-removal method was used and which components received separate care. Save the answer with your system records. Next season, the contractor can work from that information instead of relying on a previous owner's recollection or a fitting that looks like a drain.
Questions and answers
Common questions
Does a hill mean the system self-drains?
No. Surface slope alone does not establish the routing or drainage design of buried lines.
Can I choose a method from pipe colour?
No. Ask for an assessment of the complete installation.
Request irrigation closing
Call us with your address, known zone count and any access questions. We can discuss the work and confirm an available appointment.
Equipment references: Hunter: Winterizing Your Irrigation System
Use the instructions for the installed equipment. This guide does not replace an on-site assessment.
The Sprinkler Company Inc.