# How to Winterize a Drip Irrigation System

> Shut down your drip irrigation before first frost to avoid frozen pipes and costly repairs.
- Title: How to Winterize a Drip Irrigation System · Homesandgardens
- Summary: Shut down your drip irrigation before first frost to avoid frozen pipes and costly repairs.
- Keywords: drip irrigation, winterize, freezing pipes, backflow preventer, irrigation system, frost protection, water drainage, pipe insulation, shut off valve, rain freeze sensor, Homesandgardens
- Source: Homesandgardens — https://homesandgardens.com/gardens/how-to-winterize-a-drip-irrigation-system
- Read time: 1 min
- Topics: drip irrigation, winterize, freezing pipes, backflow preventer, irrigation system, frost protection, water drainage, pipe insulation, shut off valve, rain freeze sensor, design, lifestyle
## 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.
## Key takeaway

Winterizing a drip irrigation system prevents pipe damage from freezing by draining lines and protecting components before first hard frost.