Have done about 80m of the new watering system and just hit it with 600kPa kapow mfer! Take that!

It took it.. that's great. Starting to feel a bit more confident it'll be at worst a moderate to good design.

But hearing water course through them pipes was satisfying.

All i need now are the pressure reducers / backlfow, filters, air + flush valve thingos and that's the first 1/3rd done.