Don't know if this will be of any help, but way back in the first week of January this year, I finished the drain channels in my boot, and realised I needed drain holes. I discounted plastic as not all adhesives are effective, so I used copper pipe, which worked very well, I stuck the pipes in with araldite, (4 minute setting time, as I have no patience)
Here's what I wrote then:
When I re-designed the boot lid aperture and put the rain channel in place, I was aware that eventually it would need a drain hole each side.
This is a bit obvious, but I had it illustrated to me one day when the cover blew off and it rained ( at that stage the body was outside) the boot had lots of water inside.
Well its done now, I used two lengths of 8mm copper tube, flared the ends and glassed them in.
Rubber pipe will be used to channel the water down through the floor later.
One more time consuming job that had to be done, finished at least,
another 5 thousand to go...........
[IMG]
[/IMG]
[IMG]
[/IMG]
Hope this helps someone.........