Calgary Irrigation Startup: Spring Opening Checklist and Service Guide 2026

Calgary irrigation startup: The Critical Spring Opening Process

Opening a Calgary irrigation system incorrectly in spring is one of the most common causes of immediate system damage. Turning the water supply on too fast — going from fully closed to fully open in one motion — creates a water hammer event that can damage zone valves, crack backflow preventer bodies, and burst weak lateral fittings weakened by winter freeze-thaw stress. J&G Irrigation performs slow pressurization on every spring startup, taking 2-3 minutes to gradually open the supply valve and allow the system to fill without hammer pressure.

Complete Calgary Irrigation Spring Startup Checklist

• ✓ Slow pressurization: Open main supply over 2-3 minutes. Listen for unusual sounds indicating a crack or break already present from winter.
• ✓ Zone 1 walk: Run zone 1, walk the complete coverage area. Check every head: does it extend? Does it retract? Is arc correct? Is radius appropriate?
• ✓ Repeat for all zones: Every zone walked while running. Flag any head showing retraction, arc, or radius problems for adjustment or replacement.
• ✓ City of Calgary backflow preventer test: Certified cross-connection control test. Results submitted to City within 30 days. Non-compliance = potential service disconnection.
• ✓ Rain sensor test: Submerge sensor disc in water, confirm controller responds to activation. Dry and confirm release within 2-4 hours.
• ✓ Controller programming: Set odd/even restriction schedule starting June 1. Set 4:00 AM start time. Set seasonal adjustment to spring percentage (60-70% of full summer runtime for most Calgary systems).
• ✓ Smart controller weather setup: Verify Wi-Fi connection, confirm ET data is loading from local Calgary weather stations, test remote app access.
• ✓ Written service report: Document startup date, heads adjusted, heads flagged for replacement, backflow test result, controller settings.

When to Book Calgary Irrigation Startup 2026

J&G Irrigation spring startup service is available from early May through mid-June. The ideal startup window for most Calgary properties is May 15 to June 1 — after the final risk of hard freeze has passed and before the June 1 odd/even restriction begins. Priority booking for existing J&G Irrigation plan customers opens in April. Call 587-433-4795 to book your 2026 Calgary irrigation startup.