Review on 🧽 Pumice Cleaning Stones - Grey Pumice Scouring Pads for Toilet Bowl Ring, Bathroom, Household, Kitchen, Pool - 8 Pieces, 5.9 x 1.4 x 0.9 Inches by Cassandra Sanchez

I used this to try to remove stubborn limescale deposits on the pool tile. At best, they are fine. The problem is that I don't think it's possible to get a really clean pool tile after limescale has built up as I've tried 3 different brands of cleaning blocks. To properly clean pool tiles, you need expensive chemicals that take a long time to process, or costly sandblasting techniques. A simple fix doesn't come cheap, and it takes time and money to keep the tile looking new. These little blocks are like trying to kill an elephant with an air gun. By the way, no animals were harmed in writing this review.