tile grout

  1. R

    Can I use pool epoxy to fill gaps between coping and tiles? Attached pic

    Not sure what I can use to fill in these gaps. I have pool epoxy at homes, but I wasn’t sure if that is the right thing to use. Thanks in advance.
  2. diane135130

    Cleaning and re-grouting tile line

    The grout is cracking and turning black in some places and I just now, for the 1st time, saw some mossy on since of the tiles. I want to clean and re-grout but not sure what to use to clean out the old grout and what kind of grout to use for re-grouting. Has anyone done this?