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Groove Plumbing provide a dedicated expert Trade Waste, Grease Trap and Arrestor service right across Sydney

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Groove Plumbing has the expertise to take care of all your trade waste needs.

All trade waste management systems that have been, supplied, installed and maintained by Groove Plumbing are guaranteed to be effective in resolving grease related drainage issues, safeguarding that your business premises satisfies Sydney Water's trade waste requirements.

We cater to a variety of different property types and designs. Groove Plumbing can arrange a custom made grease trap to suit specific invert levels or space requirements.

Trade waste Systems that you may be aware of are below ground to above ground tanks. We have also installed Grease Traps on the top of a building to others that are just behind the kitchen. We are able to work out the best possible way for a Grease Trap to be installed at your business.

Groove Plumbing supply and installation service provides you with complete confidence that a suitable trade waste management system is being applied to your site by a fully-trained and experienced plumber with extensive trade waste systems knowledge.

Trade Waste Information

Sydney Water Guidelines for Grease Traps.pdf
Trade Waste Application Form.pdf
TradeWaste Commercial Customers Fees and Charges 2012-13.pdf

Installation can be carried out at any time, allowing your business to remain trading without interruption.


What is a grease trap?

A grease trap is a plumbing device that collects grease and prevents it from going down your drain. Grease traps should be installed by a fully qualified licensed plumber. The grease trap must also be installed according to the manufacturer's instructions, Sydney Water's requirements, and the plumbing and drainage must comply with the NSW Code of Practice and the Australian and New Zealand Standard (AS/NZS 3500).

What does a grease trap do?

A grease trap protects your sewer and saves you money. Fat, oil and grease hardens as it cools and sticks to the inner lining of sewer pipes, eventually causing a blockage. By preventing grease from going down your drain, you won't have to spend money:

  • cleaning and disinfecting after sewer backup,
  • hiring a contractor to clean the buildup from your sewer,
  • repairing or replacing your sewer pipe if the blockage is severe.

How does a grease trap work?

Wastewater enters the grease trap from your sinks and dishwashers etc. The water cools and the grease and oil harden and float to the top of the trap. The rest of the wastewater flows through the trap and out the exit pipe to the sewer. The grease, oil and fat remain in the trap.

How do I choose grease trap system that best suits?

A qualified licensed plumber at Groove Plumbing can determine which of these devices is best suited for your facility. They will consider the volume and flow rate of wastewater from your sinks, dishwashers and mop sinks to determine proper sizing.

Does a grease trap prevent blockages?

Blockages will occur if the trap is not cleaned often enough. A grease trap which is not cleaned will eventually clog up.

How often do I need to have the Grease Trap Cleaned out?

Usually local authorities do require that the system be cleaned out every 13 weeks to begin with. A trade waste inspector will visit your premises occasionally to carry out an inspection measuring the grease build up. The trade waste inspector will then determine if your system needs to be cleaned out more often or not.

Will a food waste grinder affect my grease trap?

Yes. The ground up solids from food waste grinders settle to the bottom of the trap and take up room. The trap will clog up with grease more quickly and will need to be cleaned more frequently.

Why does my grease trap back up and overflow?

Grease traps back up either because they need to be cleaned or because an outlet is blocked. If you buy a large unit you will need to clean it less often because it will hold more grease. But all grease traps will clog up if you don't remove grease regularly.

What if my kitchen doesn't don't use grease? Do I still need a grease trap?

Yes. A grease trap not only collects grease, it removes fats and oils, such as:

  • fats from butter, margarine, shortening and mayonnaise,
  • cooking oil,
  • grease from cooking or baking.

What can I do to reduce the amount of grease and oil going to my grease trap.

  • Do not pour it down the drain.
  • Use strainers in your sinks to catch food waste. Empty the strainer into the garbage.
  • Put greasy foods in the garbage, not down the drain or in the food waste grinder.
  • Use dry paper towels or a spatula to wipe all grease and food waste from cookware into the garbage before washing in the sink or dishwasher.
  • Pour small amounts of cooking oil and grease into a container with a tightly sealed lid (e.g., coffee can, small ice cream pail) and once it hardens, put it out for regular garbage collection.

Do I need to keep a maintenance logbook?

Yes. The maintenance log is a record of how often you clean the trap and how full it is each time.

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