Wash-out toilets: wall hung toilet or back to wall toilet

A wash-out toilet is a toilet where there is a kind of step underneath the seat. This step collects the excrements before it gets flushed down. You will find this type of toilet especially in hospitals, medical surgeries or in barrier-free bathrooms. It is easier to take a stool sample due to the step in the toilet bowl. A disadvantage is a faster odour development which can be contained by using the flush.