Question
Jim I installed a sprinkling system two years ago. I did everything my self i have six zones and it works great did everything my self even the backflow.  My question is do you think a can blow the system out with a 30 gallon air compressor? I have all 1 in lines. I was using a 60 gallon upright but what to downsize do to space. Aaron

Answer
Hey Aaron, with this small of tank, you will have to pressure up each valve, and turn them on one at a time. You might also have to pressure up the valve turn it on until the pressure goes down, then turn the valve off, and let the pressure build up, and turn it on again. You might have to turn each valve on and off a number off times to get all the water out, but it should work ok. Good luck and have a great day.