do i route the front sunroof drain pipes that run into the sills to disperse the rain water,my sills are freshly welded up water tight now,and when its wet the footwells fill with rainwater,its defo coming from them,coz ive pulled them free of the door pillar,and observed them in the rain,if i poke a hole in my new sills it may fail the mot,what shall i do with em?