In The Swim Algaecide for Swimming Pools – Green and Yellow Algae Preventative – Non-Clouding, Non-Foaming Formula – 10% Quaternary Compound - 1 Quart

I’ve been using the In The Swim Algaecide for a few years, and it’s been a game-changer for keeping my pool free from green and yellow algae. It’s super easy to use—just add it as directed, and it does its job without clouding the water. The bottle is easy to pour, and a little goes a long way, so it lasts longer than I expected. Overall, it’s a simple, effective solution that keeps my pool sparkling without extra hassle. Highly recommend for any pool owner struggling with algae problems!

Got rid of mustard looking mold in less than a week. Great product and easy to use to control algae in the pool and spa.

Had an early Summer algae issue due to wind and leaves in Vegas. Dumped one entire bottle in and ran a cycle. Thoroughly brushed and vacuumed the pool. Had some foam when the waterfalls ran for maybe 10 days but not bad. The water is fine now. Upped my chlorine after also.

I haven't used this product yet but the price was good. I c the ingredients so I know this algaecide should work fine!

Much less expensive than what I get at the pool store. Works the same.

Good product with excellent value. Have used over the years does great job with algae control Significantly lower price than pool store prices

Product was packaged good and arrived quick when I needed it to close the pool.

The product description says non-foaming. It definitely foams.