Still chasing the occasional, and sometimes not so occasional, water leak where the hose from the water pump enters the thermostat housing. Only seems to happen during cool down after the car has been parked up for a while. So presumably a pressure build up on the engine side when the stat is closed.
So far its had new hoses, albeit a while back, changed clip from the spring thing to an up-market Mikalor stainless steel band and bolt affair and finally fitted a new OEM thermostat last week just in case it was a minor crack in the plastic housing.
Still drips a teeny bit.
When changing the thermostat housing I did think that the hose was little slacker on the stub than I'd ideally have liked but still within the range of what a clip ought to have tightened up. Seems to me that modern hoses are slacker on the stubs than what they used to be. The hoses I used came as a full set from a reputable supplier so should be OK. Don't recall blue bag packing but may well have been Britpart. I notice that the visible end of the top hose where it goes onto the radiator shows little coolant spots about where the reinforcing cords might be. Something I've not seen before.
Seriously thinking in terms of paying the Green Oval tax and getting a factory hose. At £35 a pop it ought to fit properly but thats a lot of money for a hose. Any suggestions for a cheaper fix. Leak sealer in the coolant or rtv round the stub would probably work but both are bodges.