Lawn Watering And Irrigation

When we get rain like this in winter then you definitely DON’T need to water the lawn.
There is enough water in the soil to carry the lawn through to late Spring, so turn the lawn irrigation sprinklers OFF for Winter.
Remember that the lawn is different to your garden plants.
Lawns (especially warm season grasses) only require Heavy But Infrequent Watering, that is, 1 hour watering every week in Summer, fortnightly in Spring & Autumn and NIL in Winter.