Clearwater Absorbaball, Absorbant Pool and Hot Tub Scum Balls, 3 Pack Floating Sponge Balls, Oil and Dirt Control

They do the job in the hot tub, keep our water clean and no ‘slick’ on the top. Amazon aren’t the cheapest but inc postage and speed;t delivery why not?They don’t have a scent.I wash them in the wash machine with NO detergent. They soon puff back up.

I can tell that they do make a difference to keeping pool clear and so easy to use

Seems to work well collecting & dispersing foam in the hot tub.

Instructions say to rise in warm water - It doesn't work, when washing under warm water to remove collected grime they don't regain their shape. I'm honestly confused as to how they are 'reusable' .Very expensive for single use.

These do the job. People saying they deform and lost their shape are really silly! Of course they lose their shape when you squeeze the water out of them in the rinsing process but throw them back in the hottub and they return to their original round shape within 20-30 mins.

Not 100% sure about these yet, only used 1 and dont seem to get very dirty! So not sure it works

Purchased to throw on my hot tub as says helps with scum and oils and to keep tub clean but these don't work. Tennis balls work better and cheaper alternative.

The ball did absorb some surface dirt from my hot tub but quickly lodged i against the filter inlet. Waterlogged in less than a day and lost all shape and buoyancy after cleaning. Doesn’t really work for me.