Is Mixing StumpTea & GO CaMg+ ok?

I'm just wondering if it's ok to mix Stump Tea (from HTG) with GO CaMg+ in the same gal. of water? And if so should I let the mix sit out for 24hrs with the top off; to let the chlorine evaporate and let the Stump Tea brew?

Thank you! Any info/help is very much appreciated!