We also evaluated them for ease of use, because not all toilet bowl cleaner bottles are created equal. We conducted smell tests to see which are pleasant scents and which are just plain offensive, we investigated which ones are safe for septic systems, and we researched their active ingredients to find out which ones disinfect-i.e. Using our winning toilet brush, we decided to put 12 of the best-selling liquid toilet bowl cleaners to the test, and not just a test of how well they cleaned. There are dozens of toilet bowl cleaners on the market, making various claims to disinfect, remove hard water stains, or just leave a sparkling bowl.
