From an engineering perspective, the only way to make this technology work well would be to use the active polymers beads in a vertical filter column and pump a large quantity of the pool water through that column. It would be much like how a household water softener works - all the water is forced through the ion exchange resin beads allowing the Ca ions to be swapped with Na ions. Just putting these beads in a cloth bag and hanging it in the skimmer seems to me to be the least efficient way to utilize the metal ion exchange properties of the material. But then again, the marketing and sales teams rarely care about a product working effectively....
One other thought would be if the material was available in a form that it could be used to charge the filter with (like adding DE after a backwash), then it could be incorporated into the filter media itself (assuming it doesn't plug up a filter). You could then backwash or clean your filter after the metal ions have been removed.
Treefiter,
Do you have reverse osmosis treatment services available in your area? RO would help remove the metal ions from the pool water but it tends to be an expensive option and you'd have to totally rebalance the pool water after treatment. Also, you'd need to nail down the source of your metal ions to try to mitigate further contamination of the pool water.
One other thought would be if the material was available in a form that it could be used to charge the filter with (like adding DE after a backwash), then it could be incorporated into the filter media itself (assuming it doesn't plug up a filter). You could then backwash or clean your filter after the metal ions have been removed.
Treefiter,
Do you have reverse osmosis treatment services available in your area? RO would help remove the metal ions from the pool water but it tends to be an expensive option and you'd have to totally rebalance the pool water after treatment. Also, you'd need to nail down the source of your metal ions to try to mitigate further contamination of the pool water.