Well this is my first "real" year doing irrigation, I have replaced heads the past years but thats about it. Ive done several installs, along with some repair work (replacing valves, selenoids, clocks, leaks, etc. etc.) and blowouts. My question is, how do you guys determine how much these parts are, so you can figure out how much $ in inventory is sitting at your shop (how mch per head, nozzle, elbow, etc). I organized everything really well today, however there are still parts I need to organize. I know this is not nearly as much as you pro's have, but for my first year I think its decent. BTW: What are the Hunter PGJ's used for, I have a few but never installed one or serviced one yet? My Spray Nozzles: 73 Quarters (8,10,12, and 15's) 74 Fulls (8,10,12,15, and adj's) 96 Halfs (8,10,12, and 15's) 44 (15CST, 15EST, 9&15SST) 120 Clear, Blue, Gray Filters. Other: 90 1" Elbows 76 1" T's 80 1" Couplings 100 more fittings. About 200 swing pipe fittings. 3 Extra Selinoids 6 Valves a whole box of other parts I may need. 14 Hunter Sprays 3 PGJ's 4 PGP's and what I hate most are 2 impact heads (I used to love them before I knew anything about sprinklers). 300ft 1" Pipe 80ft 3/4" Pipe 25ft soaker hose 400ft of swing pipe. Roll of 250ft of 8 wire electrical line.