Quote:
Originally Posted by nyalpine90
im in NY, right now temps range from 70s up to upper 80s.
no idea size of yard, the house is sitting on .5 acre.
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Irrigation company owner here.
Guessing you have a fescue/rye lawn which is most likely where you are. Typically we set all of our clients anywhere from 3 to 4 times a week. Goal is an inch of water per week.
As far as time it really depends on if your system gets true triple, double or single coverage (3 times hitting head to head using 2 zones is triple). Also the type of heads (sprays, rotors or spray rotors) and nozzle sizes. Slope of the lawn, type, soil makeup, turf height, shade etc. There really is no way some one online can tell you unfortunately.
A safe bet is to start at 20mins per zone 3 days a week and go from there, the lawn will tell you what it needs. If you have narrow areas along the sides of your home it will most likely be sprays, start those at 10mins and adjust up or down. Areas in full sun and wide open may need anywhere from 20-45 mins per zone.
If you have fewer than 7 zones set it to start at 3am. Goal is to be done by the time the sun comes up so it can use every bit of water with out losing to evaporation. Anything earlier than midnight and you'll possibly have a disease/fungus outbreak, especially in hot and humid conditions.
Hope that helps.