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Landscaping

One frozen valve in February, one phone call blaming you in April.

A single frozen valve can crack a manifold and cost a homeowner thousands come spring — and when that happens, the first call is to you, claiming the winterization was never done. Document every zone blowout, the backflow isolation, and the controller shutdown, so the record proves otherwise.

18 Questions

~20 min To complete

4 Sections

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System & Site Information

5 questions

Customer name and address Required Text

Thomas & Elaine Burrows — 2204 Cottonwood Pass, Fort Collins, CO 80524

Winterization date Required Date

2024-10-18

Technician name Required Text

Jake Wren, Greenscape Irrigation

Number of irrigation zones Required Number

System type Required Select

Mixed drip + spray

Zone-by-Zone Blowout

5 questions

All spray/rotor zones blown out with compressed air? Required Yes / No

Yes

All drip zones purged? Required Yes / No

Yes

Any heads cracked, missing, or not retracting? Required Yes / No

Yes Zone 4 — one rotor head cracked. Replaced on site. Photo attached.

Photo of cracked / damaged head Photo

📷 Photo attached

Compressor PSI used during blowout Required Number

50 Safe range: 40–50 PSI for spray zones; do not exceed 50 PSI for drip.

Backflow Preventer & Main Supply

4 questions

Backflow preventer type Required Select

Pressure Vacuum Breaker (PVB)

Backflow ball valves closed to 45° (winterized position)? Required Yes / No

Yes

Isolation valve to irrigation main shut off? Required Yes / No

Yes

Backflow — drain ports opened to relieve pressure? Required Yes / No

Yes

Controller & Final Verification

4 questions

Controller set to "Rain" or "Off" mode? Required Yes / No

Yes Clock and program retained. Only run mode disabled.

Spring start-up date confirmed with customer? Yes / No

Yes Scheduled for week of April 14, 2025.

Customer walked through what was done? Required Yes / No

Yes

Additional notes Text

Zone 4 rotor replaced. Recommend replacing backflow PVB bonnet before spring — cap is showing wear.

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