So we are having this freak storm coming through tomorrow night where the temps are supposed to get down to 30-32 degrees for about 4 hours.

I have an 8 zone system. The system has a central compressor hookup for blow out. I do not think that we have auto drain valves. I say this because we just moved into this house.

What options do I have if no service man can get out tomorrow to blow out the lines.

I have a 10 gallon compressor but lack the CFM to blow out these lines. Some lines are 100'+ long.

Will I have any issues if I leave the irrigation as is with this weather coming in? I will get the system blown out next week.

Can I intermittently run the system every hour for 1 minute in each zone to keep the water from freezing up?

Thanks,

Sam