Have you ever had a lingering bad smell in a bathroom...and we don't mean after someone has just used it!
If a bathroom is not used for a while the drains can dry out and sewer gases can be released into the room. It is important to run a shower and flush the toilet regularly to make sure water stays in the drains.
Bad sewer smells can be caused by more complex issues, so if this does not fix the problem, given us a call on 8947 3000 and we will come to investigate.