Does Salt Disinfect the Toilet?
No.
This is probably the biggest misconception worth clearing up.
Ordinary table salt should not be treated as a toilet disinfectant.
Cleaning removes dirt and residue. Disinfecting is intended to reduce microorganisms when an appropriate product is used correctly.
If sanitation is your goal, use a bathroom or toilet disinfectant according to its label.
One Important Safety Rule
Don’t start combining salt with random household cleaners because you’ve seen a homemade recipe online.
In particular, be cautious with bleach, acids, ammonia and commercial toilet cleaners.
Some cleaning chemicals can produce dangerous fumes when mixed.
If you’re using a commercial cleaner, follow its label and don’t add other chemicals unless the manufacturer specifically says they’re compatible.