Easily update your boring built-in bathtub with airstone.
Because my tub is not very wide, I started with stones on one end and installed about 3 or 4, then I moved to the other side. I just didn’t want to have all cut pieces at one end. But the adhesive has quite a long working time, so you can replace stones as needed if you want. Make your cuts as you go, it’s best not to move onto the next row with a hole on the previous. A simple hacksaw will cut Airstone, no power tools needed.