I live in Tennessee and was reading thru an article put out by the university here: https://utextension.tennessee.edu/publications/Documents/W161-F.pdf Below is the specific part of the article that i wish to discuss: basically- I am trying to figure out which school of thought would be better for my lawn (which is Tall Fescue)? "One irrigation philosophy is to water thoroughly and infrequently in an effort to encourage turfgrass plants to develop deep roots. The soil is moistened to a depth of at least 6 inches and the turf is not irrigated again until symptoms of drought stress begin to appear. Many industry professionals managing turfgrasses in loam soil keep this philosophy in mind and set irrigation systems to apply ½ inch (about 320 gallons per 1,000 square feet) of water no more than twice each week. When thoroughly irrigating turfs maintained on slopes or in heavy clay soils, it may be necessary to activate sprinkler heads in each zone several times to avoid runoff. Another irrigation philosophy, based, in part, on research conducted at Michigan State University, is to irrigate lightly and often (e.g., 1/10 to 2/10 inch of water every other day) during the summer. A goal is to meet the daily water requirement of shallowly rooted turfgrasses while conserving water by preventing runoff and the percolation of water below the turfgrass root zone. Damage from certain diseases and insects may be reduced when water is applied by light, frequent rather than deep, infrequent irrigation."