Every year before the first freeze, the ritual of lawn sprinkler winterization (also known as “blow outs”) becomes the priority for all lawn sprinkler systems that are in regions of the country where the frost level extends below the depth of the installed piping. Even if you have drained some water out of the system, the remaining water can freeze, expand and crack PVC piping (rigid white pipe), usually from fitting to fitting. Polyethylene pipe (flexible black pipe) is used in many freezing climates. Although polyethylene pipe is more flexible and can expand under pressure, water left inside could freeze and rupture the connection fittings and pipe wall. Freezing water in the backflow assembly will damage the internal components and could possibly crack the brass body.
We use large air compressors to blow out all water in your pipes. This is the best method to assure your system is safe throughout the freeze season. Each season our General Manager calls all of our 3,000 Kansas City sprinkler system customers and personally schedules each sprinkler winterization we do. Make sure you are on the list and let us give you one less thing to worry about this fall.