So the tally is
irrigation system 59 nozzles
replaced 25, so, might need to replace one or two more depending on back yard (my zones are a mess, for instance my 1/2 front yard zone extends to the side of the house and into the backyard, however the back yard has the same nozzles being repeated).
with the new rotators the coverage is huge so i skip every other sprinkler (according to zone, coverage, etc).
on the capping, i found my (old) nozzles sell for like pennies, so i didn't give a fuck, messing w/ them, i epoxyed up the movable tops, caulked the holds and tighted it up w/ the screw. Also what really sealed it, is the filter. All nozzles have a plastic filter, i just put a bead of caulk in it.
It seems to work, the nozzles pop up and no water comes out, and its great cuz if i want to change the zones, i just gotta change the nozzle + filter.
I still have to dig up all my sprinkler heads tho, they're all below grade.
hunter mp vs. rainbird rvan. I have both spinning the hunter mps are more annoying in that you need a tool to adjust anything, the rainbird rvans don't. the rainbird spins like crazy tho, i actually don't like that.
in the wind they both don't mist (less water waste) and i don't actually notice the "bigger droplets" advertised in the rainbird rvans, i'll return whichever ones after a while.
Whats great is that before my driveway/sidewalk were soaking wet, now barely a few drops of water, also what i noticed is there are no more "puddles". Some areas cuz of the misting, just gets drenched and puddle up, i didn't notice this until i started just walking through my lawn with the sprinklers on doing adjustments/replacements.
I also have 20 toro precision rotory nozzles, i haven't put them in cuz the threads are male, i bought 12 toro canisters, i might try a few when i raise the spinklers to grade. The reason why i have so many is they're 10bucks but on clearance for 5bucks each w/ a 5$ rebate... so free at menards, also they stack a 11% rebate, so yea, thats weird.
Pre-emergent in Feb (since you mentioned St. Augustine I assume you live in a warmer climate) and then again in May will keep your crab grass from coming up in dead spots. If you get a plugger like what Lanx linked earlier in the thread you should be able to transplant some of your own St. Aug and have modest success.
oh yea plugger update, the first week, the grass that was plugged didn't grow for shit, but now i see length in 90% of my plugs. some plugs just look like they didn't make it.