As shown
here, it's a combo product, but does not contain a sanitizer:
Proper water care dictates the use of a sanitizing agent. E-Z Poolâ„¢ is not registered as a sanitizer with the E.P.A. It is, however, uniquely formulated for compatibility and use with minimum amounts of traditional sanitizer.
The EPA registration number for this product is 70131-1. The company that registered this product is Pure Pools, Inc. (formerly CDE Research) with some info
here and
here where the dba name is API (shown
here) which is a marketing company.
This link shows that
the product contains copper sulfate, which is primarily an algaecide. This explains why they warn against using chlorinating liquid as a source of chlorine because they warn of the pH rising (which could have the copper stain pool surfaces). The product used to be called Chlor-Free (before 1997). It also may contain a linear quat as an additional algaecide and/or partial clarifier. The pH and TA Balance is probably just sodium carbonate or sodium bicarbonate. The only interesting unique part of this product is the oxidizer they are using that presumably lasts for 7 days. Most non-chlorine shock breaks down in a day or so.
[EDIT]In addition to the copper sulfate pentahydrate we know about from above, the LD50's from the
MSDS is consistent with the ingredients ammonium chloride (produces monochloramine when reacting with chlorine so a temporary algaecide), aluminum sulfate (an alum floc), potassium persulfate (an irritating form of non-chlorine shock) and probably sodium bicarbonate. [END-EDIT]
If you want to properly sanitize your pool, then you still need to add chlorine with this product and that means daily addition unless you use "sticks" or tabs which are Trichlor as they suggest in which case you still get a buildup of CYA over time. At least you won't get algae, since you've got copper in the water, though need to be careful about staining.
Richard
(inside joke)
