If the mark still remains on the room facing low e glass surface apply a small amount of bar keepers friend or cerama bryte.
How to clean sliding door weep holes.
You can clean these in a matter of seconds just watch and see.
Then wash the surface using warm water a mild detergent and a soft absorbent cloth.
Windows and patio doors are designed with a weep drainage system on the exterior bottom of the frames to help protect the inside of your home.
Never use a dry cloth as hard particles can abrade the finish.
Rub the marked area from several different directions.
Older tracks without weep holes may need to have some drilled.
Anlin windows doors 103 541 views.
First remove any large particles with a soft bristle brush.
Never use abrasive or acidic cleaners they might cause permanent damage to the frame finish.
Once clean you should be able to pour a small pitcher of water into the track and watch it migrate to the weep holes and trickle outside.
Ceramic cooktop cleaner to a soft clean lint free microfiber cloth or paper towel.
How to clean sliding door or window tracks duration.
Than maybe the drainage holes are blocked.