Why the 6-8 Week Window Before First Hard Freeze Changes How You Blow Out Sprinkler Lines

https://writeablog.net/sandirzpws/why-a-5-rain-gauge-actually-matters-a-practical-list

If you wait until the last weekend before the first hard freeze to deal with your irrigation, you're doing it backward. Within 6 to 8 weeks before the expected hard freeze the whole decision-making process around blowing out sprinkler lines shifts