Yeah 1/2 is a bitch. 3/4" all the way if you've got a residential home. 1" was pretty rare for a city home, usually acreages, condos etc. Installed these bad boys for about 4 summers during school. Always dealt with Regency for parts etc. Will install a system in my home eventually. Pretty easy with pex to install inside to run out and covert to the poly with an outdoor stand. It's really just the labour to install it...
We always used Irritrol and 4" pops, and just changed the heads/nozzles based on the yard. Either variables, sidestrips or MPs. Hated gardens and micro lines though. But there's worse ways to spend summers, that's for sure.
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