Pool BlokPumie Pool Blok PB-12 Tile and Concrete Cleaning Pumice Stone for Pools | Pack of 1

These are the best brand of pool blocks. Others we’ve tried just fall apart. These actually get the water lines off the tile. Will order again.

This works well towards cleaning pool tiles. Leaves them looking new. The only issue is that it does not last very long. I have a rather small pool, 6,500 gallons plus a raised tiled section for the spa. One sponge just makes it for a one time use. I do however recommend it as like I said, it works.

It was exactly what I ordered and the product works great

The pumice block is great for getting salt/mineral buildup off of the decorative pool tiles. In the future I will buy it from my local pool supply store because it is $3 less expensive.

This was delivered in a ziplock bag. Brown spots all over it. The corners are all worn down. Clearly used. Absolutely disgusting. If I could give 0 stars I would.

Blocks arrived broken and seem to disintegrate quickly when used. Have purchased many times before and never this issue. I wrote to seller about the issue but never heard back.

Only did about a 5 foot section of our pool and it used half if the block. I did this section as a test to see how long it would last with the water line removed (AZ has very hard water). It was a lot of work to do that one section, and unfortunately after approximately one week I can see signs of the water line coming back. I would need a case of these blocks to remove the waterline around the pool.

I like that it was larger and easier to hold than many of the others. Works like a charm.