Clearing blocked sunroof drains

[RetroPug]

I was never convinced I'd fully solved it, but I haven't had a leak since then and this thread is nearly 3 years old.

I used airlines down the drain holes multiple times, and used a draper pipe cleaner/unblocker tool which is essentially a springy wire that is easy to slide down pipes and tubes, and finally I think a lot of the water was coming in through the aerial. I bought a new, genuine base and used some clear silicone underneath it.

If you are anywhere near Leicestershire feel free to borrow the pipe cleaner thingy.