Your sprinkler blowout is done. What now? These 8 steps take 10 minutes to complete after your J.G. Irrigation technician leaves — and they protect your system all winter and make spring startup faster.
8 Steps After Your Calgary Sprinkler Blowout
| Step | Action | Why It Matters |
|---|---|---|
| 1 | Confirm irrigation main shutoff is fully closed | Any water in the system over winter risks freeze damage |
| 2 | Set controller to OFF or Seasonal Adjust to 0% | Prevents accidental zone activation on a warm fall day |
| 3 | Check backflow preventer position | Ball valves should be at 45 degrees, test cocks open — confirm technician completed this |
| 4 | Insulate the backflow preventer if exposed | In extreme cold (-25C+), an insulating cover provides extra protection for the body |
| 5 | Clear any debris from valve box lids | Buried lids are harder to find in spring — clear them now |
| 6 | Note any broken heads or issues from your blowout report | Schedule repairs before spring startup — J.G. Irrigation books faster in fall than spring |
| 7 | Book spring startup (do it now, not in April) | J.G. Irrigation May spots fill by mid-April — book from October for guaranteed timing |
| 8 | Save your blowout service report | J.G. Irrigation provides written report — reference it at startup to prioritize repairs |
Should I insulate my backflow preventer in Calgary winter?
After a proper blowout with test cocks open, the backflow preventer has no standing water and does not need insulation for normal Calgary winters (-15C to -25C range). For extreme cold events (-30C and below), a foam insulating cover from a hardware store adds insurance. Never insulate before the blowout — it does not substitute for removing the water. J.G. Irrigation: 587-433-4795.
Book Spring Startup Now — While You Are Thinking About It
J.G. Irrigation May spots fill by April. Book from your phone right now. 587-433-4795.
J.G. Irrigation — Calgary Irrigation Services
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