The plumber recently installed two toilets in my house which, after they were installed, I noticed that there was a rim on the toilet bowl whih seems to indicate where the water level should be. I mentioned this to the plumber and asked if there was a way of adjusting the level of the water and he said that there wasn't. He siad that the level of the water is dictated by the height of the outlet at the back of the toilet. I myself find this hard to believe because the rim on the toilet bowl is there for a reason, plus it always looks ....wrong or something.

Any advice on how the level can be adjusted would be greatly appreciated.