Toilet cleaning is a regular part of cleaning, but how often do you clean the inside of the rim and the siphon jets? If you’re like most homeowner, not often. I’ll spare you all the details but you basically flush vinegar from your tank into the rim.
Worked VERY well. Smell is strong but it gets the shower and grout clean! *Heat 12 ounces white vinegar in microwave until hot and pour into squirt bottle, then mix with 12 ounces Dawn dish soap & shake. Spray & let sit for an hour. (may use more vinegar than soap)