HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types

I have a small 10' x 6.5' x 20” deep pool that holds about 500 gallons. It doesn't have a pump so I was concerned about having to refill it and I do not want to refill that much water. I use this in conjunction with a 1” chlorine tablet and my pool is still clear and beautiful after one week of kids swimming in it, grass sitting in the bottom, wind, sun, some rain. I vacuumed and skimmed the pool and put the cover on it and it's been sitting still for almost three days. Today I uncovered the pool expecting it to be at least a little bit green. Nope, still clear! I added another dose after six days so I'm hoping it continues to keep up.

Getting started with this it is very easy to read. I don't have a Pond to put it in, but I do have a bowl of ground pool. I don't use a vacuum either for this. It works fantastic. It clears it up in a gyppy specially after a good rain, I put a little bit in it with my bleach tabs no LG whatsoever.

This is the best Algae cleaner for my pool. We travel quite a bit for work and I'm always concerned about the pool with algae on the walls. I don't have to worry about that with this product. You just have to use the right amount for your pool size to prevent it getting cloudy but it works!!!

Bin using this Product for a long time and would not change it at all is being unexpected from having a partner. I du never had a problem with my POOL IN YOUR NEXT EVENT OR IN 20 Years and plan on using this product thank you highly recoment

Easy to add to my salt water pool. Just don't overdue it. Read the label and it will make your pool opening in the summer perfect!

It has been a very warm February and early March here in Central Texas. The pool had developed very early. I used the algicide and it began working on my trouble spots right away.

This zapped the green right out of the pool and left crystal clear the next day after treatment. I tried another version that was cheaper but it was not as effective. It was the Clorox algeacide, I used the whole gallon and very little changed with the algae issue. Would purchase again

It does what it says if used in the suggested amount. In my case it may have maintained the pool algae free despite low level of chlorines. Normally with the level of chlorine that keeps drifting down I get a bit of yellow mustard algae, this year I did not. It is not too expensive and with a pool of 27k gallons 2 bottles will get me through the season. The only thing that it is missing is a measuring cup or scale along the bottle.

our having a pool for 35 plus years we've used a lot of Algae Gaurd. Most of those years we have used HTH because it works really well to clear algae and to help control future outbreaks .There have eena ew times we have had to use another product due to the unavailability of HTH. But we always go back to HTH. It's a brand we trust.

from all the reviews I read this stuff seems to be not in fashion any longer. the new boy on the block is the polyquat. this stuff foams but it actually works. I tried the polyquot. I still had mustard allergy. I drained refilled superchlorinated. nothing seemed to work except this stuff. yes it smells like soap foams a little bit but all the mustard allergy is gone