Home Depot Muriatic Acid


Bronze Supporter
Jul 31, 2018


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TFP Expert
LifeTime Supporter
Jun 12, 2009
NW Ohio
Only difference is strength. The pool stuff fumes a bit less, but you have to use more double to get the same effect.


Jul 13, 2015
Frisco, Texas
I’ve used that one. Had to adjust the Baum in the Pool math app. That being said, that acid didn’t seem to have much of an effect on the pH when I’d add it. I had to add much more and still hardly got it to move. I clicked on this link expecting someone to say that certain batches were not very active .


Well-known member
Jun 15, 2019
Plymouth, Minnesota
Yeah, this is the one I use as well. As Oly said, hold your breath when pouring it, it is very noticeable if you inhale it. Pour slowly over a return, douse the bottle in the pool to avoid any getting on your decking, and just go slow.

NOTE: I personally don’t measure so that I avoid double handling and risking a spill. I simply eye-ball the level in the bottle. Just don’t inhale around the bottle when checking the level.
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Active member
Jun 20, 2012
Seems like there are two products, one is called "adjuster" in a white box and a pool ball picture on it , the other "balance" in a brown box as shown in the post above. Both show the same 34% strength on the label.

Which one is better to get for pool use? Which one has a yellow color you guys are talking about?



Yet another product called Balancer in a white box, however with half the strength
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Active member
Jun 20, 2012
Thanks for the replies. In a previous thread on this forum I read that the yellow color might come from iron impurities. I would have guessed that the standards for drinking water and pool use would be higher than for cleaning and construction, but possibly its all the same.