Muriatic Vs Sulfuric

[jbiker1950]

Is there a difference in using Muriatic over Sulfuric acid in lowering ph?

Thanks, chris

[chem geek]

No, assuming you use the required amounts which differ slightly. However, using either dry acid (sodium bisulfate) or sulfuric acid will increase the sulfate level in your pool. With Muriatic Acid, this only increases the chloride (salt) level. High sulfate levels can be a problem for saltwater chlorine generator (SWG) systems and splash out of some sulfates such as magnesium sulfate can cause significant cracking in cement and stone materials (magnesium sulfate has a particularly high effective salt recrystallization pressure).