HTH 67084 Pool Care Algae Guard Advanced, All Algae Eliminator for Swimming Pools - Fast-Acting, Destroys & Prevents Green, Black & Mustard Algae, Keeps Pool Water Crystal Clear, 32 fl oz

This product is amazing! My pool has never been this blue. We recently had a tropical storm come through our area dumping massive amounts of rain which caused an ugly mustard algae bloom. I must have dumped 5 gallons of chlorine into it over the course of a week and the algae wouldn't budge - it actually got worse. In desperation, I ordered this product. We put 14 fluid ounces in immediately. It lightened up the pool, but there was still some algae present, so we added the rest of the 32 ounce bottle the next day. Overnight the algae disappeared and the pool got even bluer as time went on.There is currently no chlorine left in the pool and it is still blue with no signs of algae. I put the last of the product in on Monday and today is Friday. This product works miracles. I wish I had known about it sooner as I could have saved myself a ton of money and grief.Other users have mentioned having trouble with foam. We have had zero foam. The only thing I can think is maybe the product is interacting with other chemicals present in their water, because we have had no foam and we used the whole bottle.Excellent product. I highly recommend for stubborn algae problems.

I've tried many different brands of algaecide, but this is the only one that actually keeps my pool clear of algae! It works fast and effectively, preventing any buildup and keeping the water crystal clear. I no longer have to deal with stubborn green or yellow algae like I did with other products.If you're tired of wasting money on algaecides that don’t work, I highly recommend giving this one a try. It’s a game-changer for pool maintenance!

Works and was less expensive than the pool supply store.

always seems to clear up the algae, even the occasional bloombeen using it for many years with successbit too expensive now, tho

Works great

I'm located in FL and would constantly fight issues with my inground pool for the last 2 years. Daily I'd vacuum the floor and walls, change my filter for one that would get soaked overnight in muriatic acid and power washed the next day before the swap. Always green if I skip a day. This first picture isn't even at its worst. After using this brand shock as well as this product, chlorine at 4ppm and I use Arm and Hammer Clear Balance tabs. After 24 hours of shock with pump running, added this product and clear balance tabs, brushed and vacuumed walls and floor, water was cloudy and foamy, so follow directions to a T because anymore and I'd have probably had sludge build up. After 48 hours, nothing was growing back on the walls or floor, and 72 hours later, my water was crystal clear and still no growth anywhere. Of course still changed filter between all this. Second photo is now a week later, last night before this picture I added the maintenance dose. Every time I've pulled the filter it has way less discoloration and now I'm going to change it every 2-3 days and see what happens. Great product. Easy to use. Visual and fast results. Just follow instructions.

I have used HTH products before. I tried a few other name brands that went on sale. I have had over 5 homes with pools. The constant adding chemicals and monitoring is a nightmare during hot months. This Algae Guard from HTH is amazing. 90+ days and no need of adding any algae or clarifier. Chlorine tablets only . Water Clarity and PH are perfect. I thought a little pricy at first but it actually last 3 months. Great Product

Great algae killer