When you use Alka-Seltzer in a toilet bowl, the effervescent bubbles loosen stains, and its citric acid binds with them. Scrubbing and flushing the toilet washes it all away.
Drop two to three tabs of Alka-Seltzer in the toilet bowl and bubbles should begin forming immediately. Leave the tabs to fizzle for about 25 minutes undisturbed.
Dip a scrub brush in the water around the top portion of the bowl, and thoroughly scrub underneath the rim to descale or unclog any of the jets. Once you're done,