How do you remove Brown calcium deposits from toilet bowl?
How do you remove Brown calcium deposits from toilet bowl? Vinegar and baking soda: Add 1 or 2 cups of vinegar to the toilet bowl along with a few sprinkles of baking soda. Swish the solution around the bowl with your brush for a few minutes and then let it sit for about 15 minutes. Scrub the stains with your brush (or pumice stone).