Any good place to get muriatic acid online? Amazon has some but seems kinda pricey (and it doesn't say what the % is)...
https://www.amazon.com/CERTOL-INTERNATIONAL-USA-128-1-Replacement/dp/B000KKQ8LA/ref=sr_1_1_s_it?s=hpc&ie=UTF8&qid=1497049397&sr=1-1&keywords=muriatic+acid
*and how often should I be putting this stuff in my pool? Is this a regular maintenance thing like chlorine or a one time deal (ph is around 7.8)
https://www.amazon.com/CERTOL-INTERNATIONAL-USA-128-1-Replacement/dp/B000KKQ8LA/ref=sr_1_1_s_it?s=hpc&ie=UTF8&qid=1497049397&sr=1-1&keywords=muriatic+acid
*and how often should I be putting this stuff in my pool? Is this a regular maintenance thing like chlorine or a one time deal (ph is around 7.8)