In most situations, the toilet will be above the drain line. This enables the waste to move down naturally because of gravity. However, in some cases, the drain line might be above the height of the toilet. This happens when you turn to build a toilet in the basement. In those cases, the waste will not move to the drain naturally because of gravity. That is when a macerator can come in handy. The macerator will grind the waste into a slurry so that it can move through a smaller pipe. After converting the waste into a slurry, the pump inside the macerator will move the waste up through the pipe