HTH Pool Care Phosphate Remover — Concentrated Liquid, 28 oz — Pool Phosphate Remover to Reduce Phosphates and Help Prevent Algae in Swimming Pools

Be sure to check how much you need, I didn't buy enough. So I had to order more. But it dissolved quickly and helped restore the balance in both our spa and pool.

I have tried other phosphate removal products and they've been more complicated and not as effective as this one - I'm not sure where all my phosphates come from, but thankfully there's a product like this to help eliminate them!

Works well. You can see the cloud forming in the water if phosphate is in your pool. Other products I've used you can't see that.

Might make your pool cloudy for a day or two, but does exactly what is supposed to do and make pool crystal clear

Worked great for our pool

Economincal alternative to expensive pool brands and works just as well for less money.

this works great. clears my pool up quickly.

Much cheaper than the pool store. Got the pool all cleared up.

Works as intended however do not make the mistake I did and over treat the water! My pool turned to milk and it took me the better part of 2 weeks to get it clear again. This was mostly my fault as I was a bit heavy handed on the amount I added and my phosphate levels were pretty high. On the plus side the levels are now normal and the pool is mostly clear but cleaning the filter twice a day was zero fun

Product seems ok , time will tell