Drip irrigation or micro-irrigation is a method of getting water from an outside faucet into your garden using hoses that have small hoses in them, dripping water into the garden slowly either at the soil level or underground to the roots. Drip irrigation saves water, providing a steady supply with little runoff. When temperatures drop, drip irrigation requires winterization to prevent hoses from bursting and components from cracking because of freezing water.
Turn off the irrigation system's water at the source, making sure the faucet is completely tight so more no water escapes into the system.
Run the timer or drip irrigation controller through its normal cycle to ensure the system is completely drained. This relieves the pressure from the line and gets all water out of the system.
Open up the end of the irrigation hose if it is an above-ground system and allow any excess water to drain out.
Make sure all of the pressure gauges, pipes, sprinklers and drippers are free of water. Remove any pieces if necessary and allow to dry.
Wrap any exposed piping with insulating tape to protect is from freezing temperatures, snow and ice.
Disconnect the drip hose from the system and store it away. Wrap any exposed area with a plastic bag and tape it shut to prevent debris and animals from entering the system.