It’s unfortunate to say but many stormwater drainage systems throughout south east Queensland are not built to an adequate standard to cater to a decent amount of rain. Sometimes, the materials used, methods applied, and lack of attention to detail is what will cause a stormwater system to fail.
Below are some common faults that we face:
- Storm flex pipework and 90mm stormwater pipes: Thin-walled and flexible pipes squash over time from ground movement and traffic, which means your drains block.
- Lack of correct fall and back fall: This may result in sediment settling in drains to cause blockages.
- Sharp bends and change of direction: 90mm stormwater bends do not have the same continuity of flow compared to the more durable 100mm+ DWV drains. 90mm fittings do not promote good flow in heavy downpours and may result in backed up drains due to overwhelming stormwater flow.