24 years ago I did my shed with 20mm PVC pressure pipe, everyone said I was crazy.
If you look at the specs if I remember correctly it's good for 200PSI, you can even use the high strength glue if you want. I used the standard glue and no primer, there are heaps of fittings, elbows, T's, etc available and cheap, it's dead easy to fit as you just cut and glue in a T for an outlet, glue in an adapter with a female thread and screw your Nito fitting into that, glue a cap on the end when you get all the way around your shed. I have a stack of outlets and just a 3 meter hose for use inside the shed as I have outlets all over the place..
Never had a problem with it.