Two things. Customer has a huge garden, requiring a tap at the end. Firstly is it best to use say 25mm bore plastic pipe? Will I get better pressure by using a larger bore pipe, or lose pressure over that distance? Direct off mains.
Secondly the customer does not want their garden dug up to put this pipe in a trench, and is mostly unseen next to a hedge. The blue pipe is meant to be buried to protect from UV, and it would cost a small fortune to lag that much pipe. Pipe will be shut off and drained in winter, so is there a particular overground exposed pipe I could use without lagging? Or is the sunlight damage thing just scare mongering and will be fine to use?
Secondly the customer does not want their garden dug up to put this pipe in a trench, and is mostly unseen next to a hedge. The blue pipe is meant to be buried to protect from UV, and it would cost a small fortune to lag that much pipe. Pipe will be shut off and drained in winter, so is there a particular overground exposed pipe I could use without lagging? Or is the sunlight damage thing just scare mongering and will be fine to use?