With warm summer weather upon us, the city of McKinney is reminding residents when to water their lawns. The city advised residents to water their lawns and landscapes no more than twice per week and to avoid watering from 10 a.m.-6 p.m. Residents should also check their sprinkler system at the beginning of each season to prevent high water bills. Alex Casey, utility customer operations manager for the city, said the average water bill can increase 200% when lawn watering begins in the summer months. This is largely due to residents not knowing how long or how often sprinklers are running. Casey said when a sprinkler system is turned off during winter months or for a long period of time, the system often resorts back to the manufacturer preset. This may cause multiple cycles to run for longer periods of time. Residents should also replace damaged sprinkler heads, the city said. More information about water conservation and recommendations can be found at www.mckinneytexas.org/waterbilling.