Muratic acid (Hydrogen Chloride) at a 10% concentration has a PH of -.5.
This is the concentration that is available for most houshold uses.
liquid muriatic acid
Muriatic acid is a very strong acid. The pH will vary depending on the concentration of the acid. A 10% concentration (by weight) has a pH of around -0.5 while a 38% concentration has a pH of around -1.1. I found this information at: http://en.wikipedia.org/wiki/Muriatic_acid.
You probably didn't put enough acid in it.
Muriatic acid
Hydrochloric acid is most commonly known as muriatic acid and is used to lower pH in pools
Yes, muriatic acid is just hydrochloric acid.
Lower pH by adding muriatic acid.
liquid muriatic acid
Muriatic acid is a very strong acid. The pH will vary depending on the concentration of the acid. A 10% concentration (by weight) has a pH of around -0.5 while a 38% concentration has a pH of around -1.1. I found this information at: http://en.wikipedia.org/wiki/Muriatic_acid.
HCl in the stomach is (around 0.5%) and a pH of 1-2. You will need to make a solution of muriatic acid similar to that. If you have pH paper, you can figure it out.
Muriatic Acid....Be real careful though.
acid can dissolve wood with its high chemiacal ph level
Very small amounts of muriatic acid are mixed with water to lower the pH balance of the water and make it suitable for water pine trees. It is important to be careful and test the pH balance of the water because too much muriatic acid will kill the trees.
In order to not cause irritation of the eyes and skin, the pH of the pool water should be between 7.2 - 7.6. Muriatic acid is added to the pool to lower the pH if it is too high.
I tried both types of acid. The pH Minus (dry acid) and then the muriatic acid. I did not have much luck at all with the total alkalinity (TA) dropping with the dry acid. When I used the muriatic acid the TA dropped within a couple of days. So to answer your question I'd have to say the muriatic acid. It is much cheaper ($12 a case) at Leslie's Pool Supply and probably cheaper other places. The muriatic acid was also quicker and had better results.
You probably didn't put enough acid in it.
Add muriatic or hydrochloric acid.