Welcome to our forum.
Soft Soak is a biguanide system. It is also offered by Leisure Time called Free and of course by Baqua. If you do a search on Baqua, you will find more information than you will want to handle. Some love the system, others hate it. Biggest advantage is ease of use. Disadvantages include high expense, the infamous baqua cough and goo around the water line.
From what I understand, there were issues with biguanides and certain plastics in earlier years, but I am quite sure this has been addressed and is no longer a problem...at least with the major manufacturers.
Does "baqua" eat plastic jets??
If I recall, it was things like light lenses on some spas that were being affected.The light lens on my 03 Optima developed a sliver crack around the edge while I was on Baqua, but I'm not sure it was the Baqua. Sundance is one company that wasn't warning against the stuff. My dealer even carried it. So it might have been something else.
Polycarbonates are what's effected. ABS, which is used in some jets, and lexon, used for some light lenses.
Inferior? I never said anything was "inferior".Do you consider gold to be "inferior"?Chlorine will eat away gold.