Quote Originally Posted by kelemvor View Post
No, I have some small stains in my pool that I *assume* are copper. I tried to treat with ascorbic and also used culator.

For all I know it could be something other than copper, so I didn't blast the product.

The culator didn't cause any noticeable change in my chemistry including salt level so I'd at least say it's safe in a salt pool. I threw the bag away after a few months.
My opinion on the CuLator is this - the science behind it (ion exchange resins) is sound; the implementation is idiotic.

That's harsh but true. I am engineer (in my former life) and no reasonable engineer would ever expect a cloth bag filled with a couple of marbles worth of the resin and thrown into the skimmer basket would have any meaningful effect. If you want ion exchange resins to work, then they have to be used in the same way that they are used in a residential water softening system - the pool water has to be forced to flow through a resin bed where 99.9% of the water intimately contacts the resin. That is the only way this technology can work efficiently.

That's my two cent opinion....

Cheers.