Most drainage blockages are caused by various reasons, the most common signs for a blocked sewer drain are overflow spillage from an outside gully trap. Water riser inside a toilet bowl, gurgling sounds when flushing a toilet. Water inside a shower tray that is slow to drain away. Kitchen and laundry tubs are slow to drain away. Blocked Stormwater drains are caused by stormwater sumps full of leaves and silt, this can cause flooded backyards and sodden lawns. Stormwater drains can also be blocked by tree root intrusion and sediment build up. Items such as tennis balls etc are also culprits.
