Help needed with drip retrofit project
We have a nightmarish irrigation setup that needs to be corrected. Our landscape architect really blew it.
There's 12 automatic valves, in three locations -- front, side, and backyard. Each grouping has a combination of lawn and planter valves, and the pressure at each grouping ranges from 80 to 100 PSI. The valves watering the lawn need the higher pressure so I can't install a pressure reducer in advance of the valves. Converting the planters to traditional drip would require individual PRV's on about 7 of the 12 valves.
I think I can get away with outlets like these and not have to worry about using emitters, just open ended hose for the shrubs.
A lot of the planter beds have ordinary sprinklers on risers -- and the sprinklers themselves are on rotating elbows underground. How do I go about converting these to use outlet ports?
There's two problems here. 1) Location. If the outlet ports are above ground, they will get broken within weeks by people like me accidentally stepping on them. 2) Accessibility. I need to be able to change the hose configuration on the outlet ports as needed.
So I guess my only option is to install a couple dozen of these valve boxes to house the outlets?
Anybody have a better solution?