Windscreen drains

Ok, so drove my car this AM (Stripped of carpet), and its been raining overnight. No water ingress that I could see when I got in the car.



HOWEVER after driving to work, I checked and there was water on the floorpan on the left hand side and it appears to have come from the front left corner again.



I am leaning towards it being a blockage in the drainage and water is slopping around when I corner, how do I get it cleaned out down there!?



Maybe some Mr.Muscle sink unblocker? :lol:

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