GLB 71205-SP-04BX Super Blue Pool Clarifier, 128-Ounces

The cost for 2 bottles from Amazon was nothing compared to big box stores let alone local pool suppliers. One bottle will easily last me a year, as I only add a few ounces after I clean my filter cartridges. It definitely helps the filters catch smaller particulate, the water goes from clear to crystal in a few hours, and whether that is just because of his product, or the fact I keep my chlorine, pH and alkalinity well balanced is not something I am going to test to find out! All I know is that I bought 2 32oz bottles 1 year ago and have used half the bottle - while the price went up, at the current price it would cost me less than $1.50 a month for my 20,000gal pool - even less than the bulk baking soda or Salt that I buy from Sam's club.If you are comparing clarifiers - remember there are 2 kinds - flocculant and Clarifier - this is a clarifier. Flocculant makes particles combine so they fall to the bottom of the pool to be vacuumed up. Clarifier makes them easier to get filtered by your pool filter. This is a great clarifier!

I have used many brands of classifier through the years and this is my favorite to make nice sparkling water with ease. Having well water filling our pool makes things a little tricky as we have very very high iron levels. This was used after the first shock when full with the water turning a nice color of coffee, sad I know. However a good dose of this and running the sand filter overnight the water was almost clear in the 24 hours later. A second dose was added and bam another 24 hours later crystal clear water with some iron sitting on the bottom, vacuumed right up and very little passed through the filter and nothing that wasn't caught on a later vacuuming. I've used metal out in the past, what a waste that was. Shock to oxidize the iron, this to clump it, then clean the floor and walls. Unlike some I am typically lucky and only need this when opening for the year but I still highly recommend this to anyone wanting sparkling water.As a side note for anyone dealing with clear iron in their water, shock the water hard which will oxidize it, use this super blue to help clump it. Then a funny looking solution I've used for years before I upgraded my filter and pump. 2 five gallon buckets with a bunch of holes drilled in the sides, bottom and top. To the lid add fittings to fit sump pump discharge hose and use a T to connect those two with discharge hose to your return line in whatever way works for you. Add to the buckets 1-2 cheap pillow's stuffing each as it's the cheapest way I found to buy poly filling. A day to a few and all the iron gets trapped in those buckets, pull them out and return your return line to normal. Take great care to pull the buckets out as fast as possible from the pool and get them away from running back into the pool as the water coming out when pulling is NASTY. Simply pull the lid off the buckets and rinse out the pillow stuffing with a hose and be amazed. Instead of the pool pump return you can also use a sump pump, just be careful with them as many will rust to pieces in the pool water in no time, try for a cheap thermoplastic pump. This Solution saved us lots of money over having water trucked in by the water hauler companies.

This is my first time immediately writing a product review, I've never been so impressed with anything ever. I have a 50,000 plus gallon pool with 7 waterfalls and faux rock everywhere, I have solar and like to keep my water temps around 85-90 and as such I have been having green algae I can't seem to keep at bay, My pool guy can't keep the chlorine high enough with once a week treatments and after researching I assume my issue is high phosphates. While researching this issue I stumbled upon this item, I also have a resort style back yard with 40 mature queen palms, 25 mature canary island palma, hundreds of assorted flowering shrubs and about 20,000 sf of grass within a high wind area so needless to say I've got pollen and organic matter intrusion like crazy. I've always just assumed my pool guy would handle it with chlorine and acid. After owning the pool for 10 years I decided to educate myself now on proper chemistry and am getting my water tested for phosphates asap, but in the meantime I wanted to give this a shot as the water is always slightly cloudy. Added it per instructions yesterday morning, ran pump since then and just looked today and oh my gosh, I never knew my water could look like this, it is insanely clear and sparkles, I always thought only pools with DE filters could get this look but nope! I'm running cartridge filters only. I also recently added skimmer sock to my skimmer and it has been catching stuff and helping alot, but today HOLY CRAP it is full of the finest material like super fine mud! THIS STUFF WORKS!

I use this product has a weekly maintenance to keep the pool clear. It works well, not fantastic, but well. I usually do In The Swim clarifier, but with a little price increase I decided to try this. If my pool gets a little cloudy, it works but sometimes takes a day or two longer than the In The Swim product. Instructions are pretty easy and straight forward. Came not broken or leaking.

is taking me years to find a good product and this is it. Everything else I have found on Amazon is diluted with water. I don’t know about you but I don’t like paying sixties to $80 for a bottle of water. You buy this you put 8 ounces in a 20,000 gallon pool and you’re good to go.

I couldn't believe how well it worked. Wow!

This is the best I’ve found for my pool. Works fast and works really well. The only small complaint I have is they don’t put measurement bars on the side of the container so it’s difficult to know how much you’re using. It isn’t cheap, so I really don’t want to use more than necessary. (Yes, I can buy a measuring spoon/cup to use for this, but it’s inconvenient and most other suppliers put the measurements on the side for ease of use.)