Temperatures are usually in the low 70s now in the NW, but we are experiencing a heatwave. Leaves are blistered from the sun and limbs are sagging for want of moisture. Expensive shrubs are calling it quits every where I go. Today a customer asked if I would also water her newly landscaped back yard each week and add it to her bill, so I sold doing the front also. She caught me unprepared and I couldn't find a sprinkler. Hand watered 30 to 40 minutes full blast - I have no patience. Next week I'll have 2 quality sprinklers and run them an hour while I work nearby. What can I charge for this service? Anybody doing this service? Any tips on sprinklers, technics, etc.? Thanks.