Blue Residue in bath & blue stained laundry
Hello my friends.
We're noticing blue stains in the bathtub lately. It can be scrubbed away with an antibacterial wipe and some elbow grease, so it must be some residue. Also, our white t-shirts are getting stained blue in the washing machine.
We have a water softener that uses calcite, if that detail helps. Any idea on what's causing the blue and how to troubleshoot it?