King Drains® preferred by Irrigation Professionals. During cold periods, water in your sprinkler system can be your worst enemy. Most experts recommend the addition of drains where freezing may affect the soil more than one foot deep. Along with winterization, strategically-placed drains insure against damage to your investment.King Drains are designed to exceed the working pressures of all lateral or main line installations. Fittings mount under sprinkler heads preventing freeze damage and low sprinkler head overflow. Valve protectors are engineered for installation adjacent to sensitive solenoid valves to prevent costly freeze cracking in the housing.
Install all "screw-in" King Drains on 45-degree angle to ensure proper drainage of water from pipes.
All King Drains can be installed with or without a gravel sump. For small diameter shorter lines a sump is not necessary. Larger and longer lines will drain more efficiently with a gravel sump.
For elevation changes greater than 15 feet, install one King Drain at each 15-foot interval.