From Homesandgardens · · 1m 10s
How to Winterize a Drip Irrigation System
Shut down your drip irrigation before first frost to avoid frozen pipes and costly repairs.
In brief
Shut down your drip irrigation before first frost to avoid frozen pipes and costly repairs. Winterizing a drip irrigation system prevents pipe damage from freezing by draining lines and protecting components before first hard frost. Originally reported by Homesandgardens.
Why Winterize Drip Irrigation
Freezing temperatures can crack pipes, fittings, and valves in drip irrigation systems.
“Water left in irrigation lines or backflow preventers can freeze and expand, potentially cracking pipes, damaging valves, or causing backflow assembly failures”
Risk of Unwinterized Systems
Water left in irrigation lines can freeze and expand, causing pipe cracks, valve damage, or backflow failures.
“If a pipe or backflow preventer freezes and bursts, you could end up having to shut off the water supply to your entire home to stop the leak”
Key Winterizing Steps
Turn off water supply, drain irrigation lines, remove timer, protect backflow preventers, and store components for winter.
When to Start Winterizing
Winterize before first frost, which can occur from early October to December depending on location.
“Ideally, you should winterize your irrigation system before the first freeze of the year”
Protecting Backflow Preventers
Leave exposed backflow preventers outside for six to eight hours during hard freezes to prevent damage.
“Leave one exposed during a hard freeze for six or eight hours, and you’re asking for trouble”
Storing Components
Store tubing, drippers, valves, and controllers in dry, frost-free places to avoid winter damage.
Additional Protection
Use a rain/freeze sensor to automatically shut off irrigation during rain or freezing conditions.
What it means
Winterizing a drip irrigation system prevents pipe damage from freezing by draining lines and protecting components before first hard frost.