Top positive review
One Treatment Cleared Yellow Algae
By Jim C. on Reviewed in the United States on June 14, 2025
Good stuff. One treatment cleared a 35,000 gallon pool of yellow algae. Patience is required to let the stuff do its job. I added the Yellow Treat per the instructions and 24 hours later, there was noticeable improvement. Three days after treatment, the yellow algae was completely gone.
Top critical review
19 people found this helpful
After just one use, the clorine level never returned to normal. Had to drain pool and start over.
By Q on Reviewed in the United States on May 14, 2023
Used the recommended amount only, and it got maybe half of the stubborn algae stain off the wall, so this product wasn't even completely effective. It is now two months later, and because I used this product just one time, I still have to add about 4 times as much chlorine as normal to the pool just to have any measurable amount of chlorine in it, because this product is still in my pool water, and it still continues to eat up all my chlorine. I am now getting worse algae growth than before, as a direct result of using Yellow Treat just one time. I now also have to put 5 tablets a week in the chlorinator and 4 in the floater (so I am going through 9 trichlor tabs a week), plus I have to shock pool twice a week on top of that just to keep chlorine level in the pool above 0.3 PPM. I can't even get the total chlorine level up to 1.0 anymore, no matter how much clorine I put in the pool. I used to have no problem maintaining it at 1.5-3.0 before I used Yellow Treat. I never had a problem like this before with my pool. Yellow Treat permanently screwed my pool chemistry. I have since done some research and learned that you should never add Yellow Treat or anything that says "Sodium Bromide" to a chlorine pool, because all it will do is eat up your chlorine in an attempt to keep converting Bromide into Bromine, which unlike chlorine, isn't stabilized and protected against the UV rays (because your stabilizer will have no effect on protecting Bromine), so basically the sun destroys bromine in no time, in which case it reverts back to Bromide, then the cycle repeats endlessly each time you add chlorine to your pool. So you have a pool that you basically can't keep clean anymore if it gets direct sunlight, and all you will do is add a ton of chlorine to it and wonder why you can't ever get your chlorine numbers into the normal range. Regardless of what anybody says, once you add Sodium Bromide to your pool, it stays in the water basically forever because it doesn't break down or evaporate. As long as it remains in your pool, it will keep eating all your chlorine. The only way to resolve this problem is to dump out all your pool water and refill your pool. If you don't believe me, do a search for this product on any pool maintenance forum where people can post questions and answers. The experienced people who know what they are talking about will tell you what I just wrote here, that in summary, after you use this product, your pool won't support chlorine anymore, it will be a bromine pool after that, which will require much more chlorine than ever before to keep the water clean, and if you want to fix the problem once and for all, literally the only thing you can do is drain your pool and start over. Then if you have any remaining Yellow Treat, you will now know to put it in the trash where it belongs.
Sort by:
Filter by:
Sorry, no reviews match your current selections.
Try clearing or changing some filters.Show all reviews
Show more reviews