Started spraying yesterday.  Flowmeter didn't seem to register at first.  I tapped on it and checked connections and it started working.  Next load was same thing.  I finished that field, went across the road and started new field in the system and it wouldn't work again.  After messing around with everything it got going for another 80 acres.  Went across the water way and opened new field and couldn't make it work.  It would paint intermittently.  
  I took flow meter off and ran water though it.  It turns freely.  I took a different raven flow meter from planter and plugged it in.  Ran water through it but it doesn't seem to register either.  Not sure where to look next.