I had it checked out at Griffen autos in North Walsham, they changed the aux belt and tensioner and the sound was still apparent, just unsure if the water pump can be fitted slightly incorrectly if not done properly, (with the bolt bracket thingy!)
Griffen used a stethoscope and its definately from the water pump area, must be that then.
Should of been more asertive and taken it straight back, just worried as its driven by the chain.
Thanks guys.