This is from SE-Michigan. I recently got a request to make some major changes to an irrigation system for a set of condominiums. There are 15 units in this complex and the irrigation system is structured to have a total of 5 separate irrigation systems, with each system irrigating three connected yard/landscapes. The system design is not bad, except the installer placed the five separate back-flows and timers tied to 5 individual resident water supplies. This causes a lot of confusion when the sprinklers are turned on or off and during the irrigation season when the water bills have to be manually calculated and separated from the residents water usage. Client wants to end this arrangement separate the irrigation water supply from that of the residents, giving the irrigation its own water supply/water meter(s) and billing. Each condo is it's own house connected to each other and there is no utility building on the complex. I figure that the simplest and least expensive way to do this would be to build a utility building to house the sprinkler components that need Winter protection and pipe the water supply lines that were formally from the individual residents water supply to the valve boxes to the utility building for distribution back to the valve boxes. The problem with this and that I could uses some advice and guidance on is that I would have to pull or trench piping from the valve boxes to the utility building and back to the valve boxes (or not), and that will involve pulling and trenching through terrain that is flush with sprinkler piping and other irrigation infrastructure, which may also include the usual cable/electrical and other utility lines, but I am mostly concerned about the sprinkler lines. I guess one of my questions is should I just plow and slice through the lines that are there and just repair them as I need to, or is there a better way to accomplish this. Anybody ever ran into a situation like this? This is a project for next Spring, but I want to get a head start on the direction I should go. I would be willing to collaborate or subcontract some of this work out, but of course the sc would have to sign a no-compete agreement. Thanks in advance for your input folks!