The first and most obvious sign of a collapsed drain is frequent backing up of your sewage. This will, understandably, be hard to miss. Related to that is the speed at which water drains from your sinks and toilets. One sink draining slowly would indicate that that sink needs attention.
All the sinks and toilets draining slowly could be a sign of a collapsed drain. Another sign that would be difficult to miss is foul smells permeating your property. If you continually get the smell of sewage in the building it could be just a blockage in a sink or toilet, but if they all check out and the smell persists, it’s time to start looking at the drains. Finally, the most concerning sign you may have a collapsed drain; damp and mould.
If left for long enough, the wastewater that should have been travelling harmlessly through your drain pipes could start to cause damp patches on parts of your property. After a time, these will begin to mould over. This is a serious problem because damp and mould can cause long term damage to your property, not to mention your health. If you notice any of these signs, call Central Drains immediately!