The Great Tetraborate Experiment!

[waterbear]

They are selling acid that is weaker in strength now. Don't know if it's a safety issue or what but regular pool acid would be 20 Baume or 31% by weight. This stuff they are selling is about 10 Baume so it is half strenth. I've noticed the price is the same!

The borax calculations for acid are for 20 Baume or 31% Muriatic acid!

[chem geek]

Yes, my calculations (in the spreadsheet) are for Muriatic Acid that is 31.45% Hydrochloric Acid that has been a standard for a very long time.