recommend that you use it only on the bottom that is normally submerged in water when it is unclogged. Besides the laddle has the advantage of removing the grime that normally sticks on the bottom of the bowl and the scratch could easily be hidden by a diluted soap. But with a toilet bowl whose bottom is made of stainless steel, the Google Toilet Bowls, scratching will no longer be a problem. To continue with the cutting, hold the handle of the laddle firmly and put the tip on the bottom of the toilet bowl; then, using the front and back of the laddle, start cutting the feces making sure that the tip of the laddle touches (with a slight force) the bottom of the toilet bowl. It would be best to move the laddle opposite the direction of the hole so you won't push the deposits inside the hole. This movement could also pull out feces that are hidden on the bottom. It would also help to move the laddle horizontally, back and forth, beside the hole. Afterwards you can rotate the back of the laddle on all the sides of the bottom of the toilet bowl (with a slight force) and then in the middle.