I can't stand the chemically smell of household cleaners so I have taken to making most of my own. I still buy toilet bowl cleaner, it seems to be the only thing to get rid of the toilet ring and keep the bowl clean all week. I recently made two bottles of shower daily spray shower for each of our bathrooms. Tip: DO NOT buy spray bottles from the Dollar Store. They are totally junk and don't work. Walmart carries much better bottles for the same cheap price of one dollar.
So far, this seems to be working great and I don't see the normal pink buildup around the shower head anymore.
Recipe from Frugal Upstate. She has two other versions on her website.
2TBS Dish Detergent
2TBS Liquid Fabric Softener
3 1/2 C Water
Mix and spray daily
Some sources suggested that since vinegar is acidic it can eat into your tub’s caulk, while others say they’ve used it for years with no issues.