Hellow , i want to ask that should any DMA in water supply be sorrounded by boundary pipelines?? or its upto us to sorround it or not ?Hello
I assume, you mean to say larger sized pipes on the periphery of the DMA, correct?
If so, it entirely depends on the designer and supply conditions. One can also consider feeders instead of supply from boundary pipes.
Please see fig below if that helps.
If not, Could you please elaborate the query in detail?