[This review was collected as part of a promotion.] This is a highly effective product. I had in the past used multiple competitive products to complete my pool clean-up. The HTH Drop Out product was very effective, and I only had to use one bottle (QT) to complete the job. My experience with HTH products has been very consistent…they perform as advertised and are reliable.
Prior to using, it is best to pour HTH contents into a bucket to allow for comprehensive dispersion as it will take some time to complete its work once the product is added to the pool. It did an excellent job to address lotions and creams that buildup along the perimeter walls that affects the chemical stability of the pool. If your pool is beginning to turn green, add the product in the evening and run your pump a few hours. In less than 24 hours, the green disappeared, and the pool was crystal clear. I used my pool skimmer to pick up all particulates that gathered at the bottom of the pool.
The HTH Drop Out is an excellent product and I give it a 5-STAR Rating.