SportsTurf provides current, practical and technical content on issues relevant to sports turf managers, including facilities managers. Most readers are athletic field managers from the professional level through parks and recreation, universities.
Issue link: https://read.dmtmag.com/i/34725
Irrigation&Drainage Rain shutoff devices are being tested by SWAT, which will bring Understanding the importance of various sprinklers and the nozzles that are included with each one is imperative. Uniformity of the application of water is extremely important as it creates and/or eliminates brown “doughnuts” around the sprinklers and in the turf areas. an important approval to these products. By installing a unit that stops the sprinkler zones from running during a rainstorm, the man- ager eliminates calls from the public and/or private operation re- porting water wasted when it’s raining. Included in some of these units are wind and freeze shutoff devices, too. Understanding the importance of various sprinklers and the noz- zles that are included with each one is imperative. Uniformity of the application of water is extremely important as it creates and/or elim- inates brown “doughnuts” around the sprinklers and in the turf areas. Depending upon the type of soil, the precipitation rate of the sprinkler is very important to know. High precip rates can leach ex- pensive applied chemicals through a sandy soil, while low precipita- tion rates allow the water to infiltrate into the soil at a more efficient rate. Matching precipitation rates with various sprinklers on the same zone is vital for proper scheduling of the runtimes. Mis- matched nozzles, with differing precip rates promote overwatering and under watering turf and landscape areas. Pressure regulation is important for saving irrigation water, as the direct correlation between pressure, flow and velocity (basic hy- draulics) affect the radius, uniformity and efficiency of a system. Too high of pressure also promotes small, fast moving droplet sizes; prone to going everywhere (but on the turf ) in high wind condi- tions. Too low, and the droplets get larger and the area being wa- SportsTurf Your Digital issue is Here! With digital editions, you get the same in-depth articles PLUS interactive features that let you experience your issue in a whole new way. • PAGE-FOR-PAGE REPLICAS OF THE PRINT ISSUES • E-MAIL NOTIFICATION WHEN EACH ISSUE IS READY • RECEIVE YOUR ISSUE ONE WEEK PRIOR TO MAILED ISSUES • READ CONTENT INSTANTLY—NO DOWNLOADING REQUIRED • HOTLINK TO ADVERTISER WEB SITES • IT’S FREE... AND ENVIRONMENTALLY FRIENDLY Go Digital! Subscribe Now! 38 SportsTurf | July 2011 www.sportsturfonline.com