Quote:
Originally Posted by Petey80
Yes, I understood that, but 9 times out of 10 it is the knuckle/wind trap in the corner of the dashboard that blocks up rather than the actual drain tube.
That is why the water remained in the tube and you got wet when you removed it from the upper end nearest the sunroof.
Blowing down the tube will have removed the blockage from the knuckle/wind trap, but not opening it wider as per my method will mean it will block up again.
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Well when I did blow down it it certainly unblocked just fine, plumbed it back up and water tested it and the water flowed out under the car as it should, very happy with it, and should it block up again I know it will only take a few minutes to solve the problem.