Water leak in boot

[swansea_karl]

 Am having a nightmare with a water leak. Have sealed the lights and gromets and water bung. The garage used a hose pipe and no water came in, it rained and water came in again, it's is the corner on the drivers side and runs to where the spare wheel is. 

[Vauxhall Owners Club]

Hi...welcome to the forum

I would personally use a smoke generator to find the source of the leak.

Smoke is easier to find its way through any hole or crack, water is a lot denser and it tracks along surfaces unlike smoke.

 

[Michael Foster]

I would check window seal,you can buy a tube cheaply from your local accessory shop