My day started out as follows... Called for a locate next week. 1st call - all zones not working, located and repaired 4 wires chewed by ground squirrels. 2nd call- checked system and replaced 2 R-50's with PGH's , 2 3500's with I-20's, moved 1 and checked for a leak. 3rd call zones 5,6&7 not working, so we 521 the cut and replaced 4' of 18/8. 4th call checked system, all good. 5th call checked system and reprogrammed controller. 6th call - checked a 1 year old system with 14 1804's with 18 van's installed and all heads popped up 1/4", I told the homeowner " we will have to perform a miracle in his front yard" so we hooked him up with 14 Rain Bird rotators. Stopped at supply house for more heads and a controller. 7th call added a Hunter 12 sprayhead and replaced a PGP. 8th call replaced a pgp from 88' and a r-50 with 2 I-20s and a surepop with a 1806. 9th call replaced 6 maxi-paws with PGP's and 4 surepops with 1804's... Finished the day by returning 10 calls from today, and getting ready for a install tomorrow.