Bests & Worsts Reviews from Amazon

The chemistry is fairly simple, buy some copper sulfate on Amazon, $4.99 for 5 pounds, and when you need it, say in the late spring, put 4 ounces in a pail with with some water, mix it to dissolve, walk around the pool and “sprinkle” it. We have a 10,000 gallon pool and this works, maybe three times a year. The treatment per year costs about $1 dollar, at least for us, and we are in South Central Florida. It works in conjunction with chlorine, so you have to keep an eye on chlorine levels, but that aside, it works, as suggested, very well. Your pool store will not recommend it, it kills their bottom line. We had originally bought the finished product highlighted here, and it came in a nice flow-thru plastic container which we put into the water line flowing from the filter to the pool as recommended, and that worked. It was at that point that we started to think about the chemistry, why it worked. And, as noted above, we came to the solution of using the granular copper sulfate. Go to the website for the copper sulfate and read the reviews, you’ll see that the majority are very favorable.