In this picture I have a spigot in point 9 (see the spigot setup below) and I am planing to install an irrigation system as per the below layout
The edging is 44'x18' with flower beds ~4' wide (at their widest point) What size should my red pipes be and what size should the blue pipe be considering that the copper pipe that comes out of the wall is 1/2"? Can I use a hose with a quick connect from the spigot (❾) to the manifolds (❽) which I plan to remove during the winter?
How deep should I dig for the pipes? The frost line is 3-4' in Toronto so I guess it does not make any difference if it is 6", 1ft or 3ft. I have the feeling that the installation depth for these pipes is dictated by a compromise between avoiding accidental digging out the pipe when doing something else and saving on materials