Sunroof draining tubes

How do I make sure that both tubes are clean? I found some water droping from the interior lights this morning.

blow an airline down the tube,,,gently tho at first u don't want to blow the pipes of the sunroof drain tubes, otherwise u'll be taking down the headlining to refit them

That's correct but the problem is that the sunroof doesn't open. Can the valve in the botton be remove to verify the tube?

are they the hose pipe diameter tubes that go down the A pillars and exit into the wing infront of the doors? Just wondering coz these two black one way flap valve type things were on the floor next to my rangie after some deep water, I'm thinking this is what they're off of? sorry to go off topic a bit, I used to play French horn and have some huge long pipe cleaners with brushes on exactly the right diameter for those pipes, they're specifically long enough to go through a French horn, available from any decent music shop, and very handy for jobs like this

I had the same problem a couple of days ago, but couldn't find the ends of the drain pipes. Whereabouts in the front a pillar are they? I thought I'd be able to see them with the doors open, but couldn't.

RangeRovers.net suggests reverse blowing them with an airline, but I can't find the ends!

The rear ones are totally invisible even with the sunroof open and I can't find the other ends of those either.

I hate cold showers!

Guy

Well in the manual it looks like it is behind the left front wheel and right rear. You have to remove the cover to access the tube.