Crime rates in Lisbon (2015): 1  0 murders (0.0 per 100,000) 2  0 rapes (0.0 per 100,000) 3  3 robberies (109.6 per 100,000) 4  4 assaults (146.1 per 100,000) 5  4 burglaries (146.1 per 100,000) 6  20 thefts (730.7 per 100,000) 7  1 auto theft (36.5 per 100,000) 8  City-data.com crime rate = 104.5 (higher means more crime, US average = 233.4)
4.5k Views. You can try making a poultice to draw the stain out. A basic poultice mix is simply made by combining baking soda and water to form a thick paste. Spread this paste generously on the stain, making sure to extend a bit beyond its border. Cover the poultice with plastic wrap and let it sit for 24 hours.cetone may work if the stain is close to the surface. However, if the oil has absorbed deeper into the stone you need to try a poultice that will draw the oil out. It may take repeated applications and may not remove it all.
Step 3 - Cleaning Calcium Stains. The first method of calcium stain removal requires the use of a pumice stone, preferably a pumice stone equipped with a plastic handle. Vigorously rub your pumice stone over the stains until they have been removed. If the stains have had a lot of time to set in, they may prove stubborn. With the right amount of strength and patience, you should eventually be able to expel them from your toilet bowl. If you don't have access to a pumice stone, you can get rid of calcium stains with the help of a commercial stainless steel cleaner.