Water Leak under the boot

[Magictorch1]

Hi. Hope someone can help. I have just started noticing a leak under the boot on the drivers side of my Mk 3 focus roughly in line with the corner of the boot hatch. The leak is definately water - I put my hand up into the space and caught one of the drips. Seems to be leaking slowly all day when parked on a flat surface - there is a damp patch on tarmac when I leave work. Strangely though it doesn't leak overnight when I'm parked a drive with an incline from left to right. Seems to leak water even when there is no rain.

Checked the inside of the boot and car interior as I read about a leak problem into the car but everything is dry there as far as I can see.

I'm completely puzzled. Anyone got any suggestions before I end up at the dealers?

[plasticpat]

I'm  guessing here , wildly perhaps but it may be a screen washer tube come adrift . I've got a Mk 3 estate and haven't experienced the leak you have . 

[Magictorch1]

Thanks for the suggestion. The water is clear so I don’t think it is screen wash but I’ll have a look and see.

[TomsFocus]

Sounds like the usual mk3 bumper vent leak.  There's a huge thread on it at the top of the Focus page. 

[team alchemist]

Or it could be the tail light, had the same problem on mine but after Tom's top tip of putting vaseline around the bolts holding it in no more leaks.