Pool Mate1-Quart 4-Pack Premium Algaecide 50, Algaecide for Pool, Made in USA

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 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.

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.

A great product, easy to use and removed spots on bottom of pool. It stopped the growth of algae.

We were gone for two weeks and came back to a pool that was green and brown. After trying the usual products that didn’t work, we thought we were going to have to drain the pool. My husband was in Home Depot and saw this product and thought he would give it a try. By the next day the pool was crystal clear! We were amazed. It happened again when we were away and as soon as we used it the pool cleared up. I liked the product so much I ordered some for my cousin because her pool was in the same situation. This is a fantastic product for a very inexpensive price.

I have struggled with algae for a long time. After using a generous dose of this stuff and shocking, I was finally able to clear it up. Algae dust on the floor in the morning - gone. Stubborn algae stuck in crevices - also gone after a couple of weeks.This is the third algae remover product I've tried and the only one that worked. Will buy again for sure.

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.

Great valye