Iron bugs - bigbumble
Our 127-year-old former-one-room-schoolhouse's wellwater is loaded with iron and sulfur. We get the variety of water softener salt that has the iron fighter, but the bag's label says that it's incompatible with chlorine bleach. Rather explosively, since plumbing pipes are involved. I haven't bought Clorox for the house since we moved here, just Vivd.
On the other hand, if I eat our home-grown vegetables watered with the pre-softener water tap, I'm pretty sure I won't get anemia again.