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If your water pressure is more than 80 PSI then you will need a water pressure regulator...to cut down the pressure, or your mainwater line will have a tendency of blowing apart ..usually when your not home...my first house had 130 PSI....

Home Depot or Lowes has all the supplies U need. I like Rainbird...it's all like tinker toys....and it's best to stay with ONE mfg of heads..Rainbird, Toro etc...parts from different mfg's are not interchangeable...

It's best to build a Sprinkler valve manifold so that you can replace valves by unscrewing them instead of cutting PVC pipe...another thing is to palce a gate valve before every manifold you have...simply if one manifold has a problem yu can shut just that maniflold down instead of the WHOLE system..

He is another trick...if you have a 1" main water line to the house, buy 1" sprinkler Valves ....1" intake....1" outflow......then immediatily (wihin one foot) on the outflow side, reduce it down to 3/4" so that the RUNS are 3/4"pvc pipe...that will boost your water pressure by restriction... also towards the end of a run if you need to boost pressure you can reduce it to 1/2"......or if U wana get reallly crazy make each run into a loop so that each head will get exactly the same pressure...

Also by all means by a Sprinkelr Valve Timer and make the system automatic...in running the underground wire from the timer to the valves either tape it to the pvc pipe or better yet run the wire in it's own pipe...simply if digging in the garden one day..a shovel cuts through the wire real easy....and one forgets exactly where it was buried in the first place...real easy.

The only problem with the automatic valves is that every few years a solenoid will go bad and have to be replaced... I used Plastic valves....by Orbit or?????? they were grey...hows that for ya...Brass valves by Champion were nothing but headachs...I had them at my first house....

For trees and shrubs it might be a good idea to use a Bubbler head so that your just watering that plant...saves water...or go drip system...which is the way it's done in LV...

When Gluing this stuff use a Primer and the HOT BLUE GLUE

In my house in Alta Loma I had 13 (Valves) sprinkler runs with a total of 360 heads....and other than the gardner cutting a sprinkler head with a lawn mower, cleaning dirt etc out of some of the heads, or replacing an occasional solenoid...I had NO PROBLEMS with my system in 13 years... I ran an Irritrol 18 Station Proffessional Timer....