Water Leak

[nifty]

Hi guys,
My 2000 petrol 12 seater is leaking water at a dangerous rate. It's impossible in my situation to confirm where it's leaking but appears to be at the joint of what I assume is the water pump (next to the air-con setup on the continuous belt). The main rubber pipe seems to be ok - I just can't get my face close enough to see properly. Does anyone have an address where I can look at a schematic of this area? There is no noise coming from the pump so perhaps it's just a seal? Any help greatly appreciated.
Neville