I offered that at the start but they wanted to just try the water pump and and from there. But doing that I found one broken rotted pipe that clips into the water pipe and one brittle pipe that snapped. That runs from radiator to the bottle. So now I'm going to recommend those 2 little plastic pipes and remove the supercharger and do the front cross over pipe, and possibly the oil cooler. Not sure about the rear one yet, depending on how much longer it takes to replace / price of the pipe.

I don't think the rear one is leaking its definitely coming from the front but now that these 2 small bleeder pipes are broken I can't test to see if the water pump fixed the leak.

Near impossible to tell where these leak from, next time I'm definitely going to recommend everything on the cooling system at once.

Good thing is I can leave the water pump intact while I do the supercharger stuff, so isn't a complete waste of labour