Flow and pressure over distance
I'm going to install an inground system, myself. I bought a book and read it cover to cover. I'm mostly prepared as far as having the design layout, all measurements accounted for and about 95% of my materials sitting in my garage. However, a discussion with a fellow at Home Depot threw me for a loop. He suggested/adviced that as I use a 1" line into the valves, to use a 3/4" feed line after the valves and then tee off to a 1/2" line to finally feed the heads.
After reading a little more on this (which is not a topic covered anywhere in the "Scotts" book that I mentioned), I'm concerned about reducing the flow rate.
I won't have many turns, will be placing the valves in the zones they serve and will have a static pressure of anywhere from 60lbs. to 100lbs.
Is reducing line size something I should be concerned about?
Thanks!