drainage holes in upvc door

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hi, we have a upvc tilt and slide patio door, and its been letting a lot of water in the last few weeks, it had me baffled for ages trying to figure out wheres its getting in. I think the problem is being caused by the seal around the opening part of the door leaking water into the bottom of the frame. the water is then going into the drainage hole in the bottom of the frame, but instead of draining off outside somewhere, it coming into the house by the sliding mechanism.

I thought there's 2 possible solutions to this, 1. stop the water getting into the bottom of the door frame to start with , so I tried changing the door seal, but it still seems to be getting in there, or 2. sort the drainage holes out so the water drains off outside. but I cant work out where the water is supposed to drain to. theres a 1/4 inch gap all the way along the bottom of the door frame and the cill outside, im guessing it should drain out of there, but I cant get anything in there to see if its blocked.

can anyone offer any advice please??

the red arrow on the photo shows where the water is getting in and going into the drainage hole, I think it should come out by the yellow arrow , its actually cominh in by the green arrow

thanks

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27 Apr 2011
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Somerset
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Yes water should drain out between the frame and the cill. The drainage channels can get filled with gunk blocking them up.

You could try giving it a quick blast with a hose, Trying to clean it with a coat hanger and cloth or you can get pressurized air cans on ebay to try to blow it through.

Once cleaned it you still have problems you could try fitting a door drip, Something like this http://www.homesecureshop.co.uk/pro...p-Board.html?gclid=CKf-xsrlxroCFXMRtAodLHMA0g (1st site that came up when I googled)
 

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