good afternoon .
Whilst changing the glass in my downstairs bay windows. i realised the 2 top pains had water in the drain holes still .
so i pour some hot water to try clear the drain holes ( no look )
it does drain but very very very slow .
i can not see were the water is coming out of tho ( outside )
there are no visable drain holes . ???
i want to sort this as i dont want to put my new windows in for them to brake down so quick ...
what would you all advise .. . . and were are the drain holes leading to ? under the window sill out side ?
or down the sides by the silicon ???
