Hi everyone! We have a Saniflo for a toilet that has not been used much. It started to smell - a sort of dank water smell that came out into the corridor - but not leak or any other problems, it seems. A plumber was at the property and I told him about it but he said there was nothing wrong ( though he just flushed the loo). The smell got worse. I put down half a container of the Saniflo descaler/cleaners product just 4 days ago. The smell is now back to just "dank". It has not gone away. The Saniflo was here when we bought the flat - so know nothing about it. Looking at the exterior wall the down pipe drain from that bath room looks to be only 2 meters away along the wall from where the toilet is situated. Do I need a saniflo at all? There is no gradient for the water to flow up. I don't want to spend money on a specialist Saniflo plumber - as is required I think to fix it - when we really would like to get rid of it. We want to rent the property so need to fix the problem. Thanks