Pool Mate1-Quart 2-Pack Premium Algaecide 50, Algaecide for Pool, Made in USA

Good quality and good price

I mixed up a batch of this, about a 10% mix with water and some soap and used it on the green algae and mold on my walks, and limestone garden boundaries. I even usedit on my siding and it works great. The green algae disappeared after a few days and the limestone looks nice and white again. Will have to wait ad see how long these results last, but so far after about 2 weeks it looks good.

I have a 36,000 gallon liner pool and since the liner is ending the end of its lifespan started thinning and developing black algae spots on the bottom. I was told that the only solution was to replace the liner and since I am trying to get a couple more years out of it, I bought this stuff as a last resort.I was very skeptical it would work but followed the directions and waited. The bubbles are only a minor nuisance but the smell is unpleasant and I would recommend not swimming for at least a week. We had a two day rain storm come through and I was unable to sweep. On the third morning I went to backwash and noticed the spots changed color to a light brown. I took the brush on them and was amazed that about 80% of it is now gone. Again not completely but I am happy with the results.Will it come back? Probably but at least I found a way to keep them at bay.

This has the same ingredients they sell in the pool supplies store where I buy my stuff, but it costs half as much as my pool store charges.Retired, fixed-income, and I shop by comparing products.

This works great.

I have bought this twice. After a heatwave the alge got out of control.Shocking helped but it kept returning. Put in 10 oz of this and it knocked out the alge. Excellent product.

Makes a lot of foam but still gets algae in the pool. Not sure how good it's actually working compared to other products I have used.

I have been buying this product a couple times now. It works great. I was buying the expensive stuff at Lowe's then I found this. It works just as good. I shock my pool every other week and use this on the off weeks.