Water collects on both sides of the track where the sliding part of the door sits and where it slides.
How to fill in track on sliding door.
In this video i demonstrated how to make tracks for a sliding wooden door and a technique to modify your saw blade.
Second one shows the unmoving side of the door and the track where the moving part slides into when opened.
It is likely that one or both of these weep holes are clogged.
First one shows the screen track and the track where the sliding half of the door sits when it s closed.
Look for dirt or debris that could be clogging these holes.
Work a flat head screwdriver under one of the wheels lift it and angle the door slightly until the wheel clears the track.
Get a helper to lift the door.
In this video we show you how to install both a large and small sliding glass door track cover.
The track on the sliding glass door should have a weep hole drain hole on each end to drain the water out of the track.
These holes are normally in the outside corners of the tracks.
Feel free to ask me any questions and com.
I m attaching 2 pics.
Remove the door from the track.