There is no doubt that metals in the water is nothing going but annoying. Blue is for start up and pink is the regular stuff. Maybe try the purple stuff, it is for high TDS pools, generally saltwater. But, in your area it is likely that your pool has high TDS and maybe purple would work better.
Have you done, or considered doing, a partial drain to try to get the metal out of the pool? AA treatment, sequester and drain 50% of the pool?