What are the differences between Sewer and Storm water drains?
Sewer and Stormwater drains are two very different and completely separate
plumbing drainage systems.
Sewer drains or house drains collect waste water from fixtures that can be classified as either grey water or black water and connect to a council or water authority common sewer effluent system or an on-site waste water management system, as appropriate. Common house fixture’s connected to a sewer are:
- toilets
- showers
- vanity basins
- bidets or bidettes
- baths
- laundry tubs
- clothes washing machines
- dishwashers
- kitchens sinks
- waste disposal units
Common fixture’s in commercial buildings in addition to common house fixture’s that connect to sewer or house drains are:
- bar sink
- commercial deep bowl double or single pot or utility sinks

- laboratory sink
- glass washing machine
- cleaners sink
- urinals
- drinking fountain
- bain marie cabinets
- instrument sterilizers and autoclaves
- refrigeration and freezer units
- air conditioning units
- bedpan washers
- commercial washing machine
- commercial dish washer
- autopsy table
- dental unit
- potato peeler
- grease traps
- sanitary napkin disposal unit
- slop hopper
- swimming pool filtration back wash
Storm water drains are essentially roof drainage systems, surface drainage
systems and subsoil drainage systems to a point of connection be it for use as drinking water or run off into the ocean. Storm water drains generally collect rainwater runoff from roofs, paths, patios, ground runoffs, aggi pipes and more.
In Queensland the law and associated regulations plus Australian Standards for the installation of sewer drains is much stricter than those for the installation of stormwater drain, this is mainly due to the importance of hygiene and the enormous inconvenience caused by a malfunctioning sewer system.
Stormwater drainage systems are also critical as we are all aware after the long summer of rainfall and the flooding in South-East Queensland. In fact poorly designed, installed and maintained stormwater drains are far more likely to cause flooding than anything else.
Whywait Plumbing Services place huge importance on installing, servicing, maintaining or repairing both sewer and stormwater drains to a standard that exceeds the required regulations.
Due to our specialised training, specialised equipment and vast experience in unblocking and repairing drains we have the knowledge on how a drain should be installed or repaired that will help avoid any future problems.
At Whywait we guarantee professional drain clearing to fix it right the first time. We call it the Whywait difference:
- We clear and clean the drainage line with our high pressure water jetrodding unit;
- We inspect the drain with our CCTV drain camera to locate the reason for the blockage;
- We pinpoint with our electronic tracking unit the exact location of the problem area;
- We offer you a permanent solution to repair the drain.
For immediate help with blocked or overflowing drains or any related problems, contact Whywait Plumbing today…job done!
Gold Coast & Tweed: (07) 5580 4311






