If you see water pooling around the base of the Saniflo unit, this is a serious issue.
You flush, the water leaves the bowl, but the pump keeps running indefinitely until you unplug it. saniflo toilets problems
Saniflos need a vent (usually via an Air Admittance Valve or external stack). If the AAV fails, negative pressure pulls sewer gas back into the room. If you see water pooling around the base