The landscape gardeners are by far the slowest crew on the construction site so far. In one day, they only set 5m of curbstones. If this continues, the garden won't be finished until 2022.
I would like to lay water pipes underground along the property wall and have a water tap protruding from the lawn at every corner. It will be connected to the outdoor tap at the house. I have had a drain pipe laid under the paving stones to the water tap so that later the water-carrying pipe or hose can be routed through it. Which water pipes, T-pieces, and taps can you recommend?