Okay, maybe a real dumb question here, but-

So once I empty the radiator, it looks like the only place to add fluid for the flush and refill is through the reservoir?! I'm more used to seeing a radiator cap on top of the radiator, but it looks like through the reservoir is the only way to add fluid, yes?

Hard to believe, but through that little hose between the reservoir and radiator you're supposed to get 12.5 litres?

Would someone confirm this is the way to fill the radiator? Sorry for what might seem like a dumb question. Thanks