- Replacing a few defective heads and performing a full system check Work performed: Zone 1, replaced one rotor head and straighten one rotor head Zone 2, replaced two rotor heads, capped two old heads and straighten one rot or head Zone 4, replaced one rotor head Zone 5, replaced two 6” head with rotary nozzles ** Please see attached forms for system and controller details ** - My card is also attached, so feel free to contact me for any questions or concerns