How do you clean water spots off glass block tile in a shower?

Hi , I would try a mix of hot water , white vinegar and a drop of dawn dish detergent. Then I would use a non scratch

Scrubber and go to work ... after I would rinse with cold water , it gets rid of suds faster. Then I would use a glass cleaner. I would use a squeegee, if it works on the glass cubes... Then finish with a cleaner call repel, it helps keep the water from staining . I do this once a month. If the squeegee works with your blocks , keep it next to or in the shower, and use it each time you shower!

vinager is a mild acid and should help make the spots gone. I have also made a paste of baking soda and scrubbed with that. when you get the water spots gone, spray your shower with a cooking spray, rainx etc. those will keep the spots away.