If you live in an area that has tempt below freezing for long periods of time this is what we suggest.
1. Remove the Timer and store inside your garage or home.
2. Uncrimp the end of your 1/2" Poly Tubing and let the water drain out then re-crimp the ends.
3. If you have our End Fitting with the removable Cap then unthread the Cap and let the water drain out then thread the Cap back on the Fitting.
Because our Tubing, Fittings, Drippers, and Micro Sprays are designed to be outside in extreme weather conditions all year long you can leave them right where they are. A good idea is next spring season is to open the ends of the 1/2" Poly Tubing and turn on the water to give a good flushing out of the system.