Where to get SH

So as I’m just starting out, I am still buy SH from pool stores, the only problem is that SH from pool stores is super expensive. I spent $90 for 12 gallons of SH… this definitely hurt my pocket as I am just starting out!!

What I’m asking is where is a good place to get SH for a lower cost? I am based out of Chattanooga TN, so if you’re near here, let me know

Thomas Pressure Washing