Irrigation System Winter Tip from your Houston Pool Builder

It is time to look into protecting the backflow device on your irrigation system from potential freeze damage.  Wrapping the pipes and the copper bell housing with insulation and following the draining procedure below will help lessen the likelihood of the backflow device cracking or busting.

http://www.backflow-supply.com/backflowcd/pdffiles/Febco/Pressure%20Vacuum%20Breaker/765%20FREEZE%20PROTECTION.pdf