Review on 🧱 Powerful and Efficient U.S. Pumice Scouring Brick for Lime Neutral Cleaning, 6" X 2-3/4" X 2-3/4 by Erin Young

For starters, this is NOT a 100% natural pumice stone. the pumice will be much heavier and denser. These blocks are NOT very effective at removing debris from pool tiles. If you live in a hard water region, you will need several dozen of these products to clean the entire pool. Why? because it is not real pumice stone. They remove scale, but you'll be lucky enough to clean just a few tiles before they dissipate and leave a lot of dust in your pool. There are better descaling products for pool tiles, HDX Pool Pumice from Home Depot is superior to this product. It will get the job done and last a lot longer than that big stone. Don't let the size of this brick fool you, it won't last very long as it's not real pumice.