Just a general question if all US "algaecides" are all made by the one manufacturer, why is there such a variance on eBay / amazon for a one qt. bottle from $ 18 to $ 55 + ? Just wondering any insights appreciated.
thanks duraleigh, isn't poly 60 known as the better of the algaecides with the most productive effect on black algae? So a person buying the $55 1 qt bottle is getting the same liquid as a $18 qt bottle as Griswald refers to? thanks
There is only one PolyQuat 60. A $18 bottle is the same stuff as the $55 bottle. The only difference is the markup from the seller. Look for the cheapest bottle with the active ingredient Poly (oxyethylene (dimethyliminio) ethylene (dimethyliminio) ethylene dichloride)........60%
Besides closing your pool over the winter or performing the Ascorbic Acid treatment there really isn't a need for the product however.
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