Used my Cyclone yesterday to blow out my 6 zone sprinkler system. Had to cut the 1” pvc pipe right after the pressure release valve to add a 1” tee with a cap. I think it did well. Most of my zones have at least 6-8 heads. Blew out all water on each individual zones for 3 mins each then all zones at once for 5 mins to make sure all was good. Next year I’ll just uncap the new tee section and blow right from there. Just wanted to say it’s possible with the Cyclone, another use for to justify my purchase.