I had this problem before on my last car, turned out the drainage channels on my car were blocked with leaves etc. so the water started dropping down inside the engine and onto the floor.
That's no the problem here as I cleaned them out when I was checking suspension.
It's actually on the floor below my carpet so it must be coming from underneath.
No loss of coolant so it's not that and it's definitely water.
We're having a very wet spell at the moment in Ireland (what are the chances) so do you think it's just rain water kicked up from the ground to the underside?