I'm repairing a 7 zone sprinkler system a customer had done for $1800.00, so you can imagine the problems that I am running into. One problem is the nozzles that were installed on the rotor heads. The highest gallon output he put in was 2 gallon for 360 degree turn heads. I've looked for replacement nozzles and can't find them anywhere. I've looked at Home Depot, my local sprinkler wholesaler, and even online with no luck. Anyone have any ideas on where to find this?