For Lukeaa problem..
First, get a good sealant.
I used this one
Remove the shower door taking care to first study
exactly how it is mounted and adjusted.
You will then need a very sharp knife to cut and remove any sealant previously deposited around the bottom of the shower between the pan and the glass frame. Be prepared for the very ugly ooze of stuff you have to remove from between the two surfaces.

You can use a flat blade screwdriver or similar object to raise the frame of the shower enough to work in there. Not much space, maybe 1/4", but enough.
When clean, several hours and beers later,

wipe area as clean as possible with acetone, alcohol, or similar cleaner. Take new tube of sealant and apply between shower pan and frame on both the inside and outside of pan.
Do not leave any voids!!! Let the shower frame back down into the new sealant and remove any excess sealant. Check vertical joint at both sides of the glass also and fix at this time if necessary while sealant is still wet as they will form a good waterproof joint this way.
Really a simple


fix...