Frameless shower door leaks

Crash Course on bottom dam issues and fiberglass surrounds. Fastglass is located in southern California. Dana Point CaliforniaFRAMELESS SHOWER ENCLOSURES WITH THIS TYPE OF FIBERGLASS BOTTOM DAM DO QUITE POORLY HOLDING WATER IN CHECK. THE PROBLEM IS THE DESIGN OF THE DAM.THE DESIGN IS PERFECT FOR A FRAMED SHOWER UNIT NOT A FRAMELESS SHOWER. AS YOU CAN IMAGINE WHEN A GOOD TILE OR STONE SLAB IS USED FOR A BOTTOM SHOWER DAM IT HAS THE CORRECT TILT FORCING WATER BACK TO THE DRAIN.TO SOLVE THE LEAK PROBLEM I HAVE BEEN USING ALUMINUM EXTRUSIONS LIKE THE ONE YOU SEE HERE. HOWEVER, I SOMETIMES GET BUSY AND MY AWESOME SHOWER DOOR CREW WILL MEASURE AND INSTALL A SHOWER WITHOUT MY HELP.