it sounds like the pipe could be kinked between the last working head and the first one that doesnt come up otherwise they are both plugged. Quoted from "ramhi4x" I have one station with 4 heads, since first turned on this season, two heads pop-up and work fine, two heads are held down by pressure some how even when I manually pull them up, they just get sucked back down. Can anyone explain this please? Thanks!
