so i found this http://www.soapgoods.com/20-Mule-Tea...d41687766582a5
and then this http://www.soapgoods.com/Washing-Sod...ght-p-716.html
i guess my question is what is better? per pound the washing soda seems like the better buy. also on the simplepool app when it gives you advice on what to add to adjust the amount of ph, borax is nearly double the amount of washing soda. am i missing something?
is the washing soda something completely different than what is used for pools?
thanks for any help folks.