Below you can view some commonly asked questions. Be sure to get in touch if you have any further enquirees which are not covered below:

What size grease trap do I need?

There are different sized units available, the size you require is determined by the amount  waste water. 


Fats, Oils and Greases are generated in significant quantities from kitchens of Food Service Establishments and are the by-product of food preparation and washing up activities. The ultimate aim of grease trap system is to prevent untreated oils and greases from entering the drain so that the respective discharge levels of FOG, which vary widely (30mg –100mg/lt) from Authority to Authority, is ultimately achieved.

The FOG programme was introduced to control the discharge of FOG to the drainage network. In this programme, FSE operators will be licensed to discharge FOG by means of a trade effluent licence issued under the Water Pollution Act. As part of the conditions of that licence, limits will be set on the amount of FOG that may be discharged to the public drainage network.

What does it involve?

Initially, premises will be inspected, advice given to the operator on the steps they have to take to obtain a licence and once licensed, each FSE will subsequently be visited four times a year to ensure compliance with the limits set in the discharge licence. Local Government (Water Pollution) Regulations now require a FSE to make application for a trade effluent discharge licence. Applications consist of a one off plus an annual fee to cover the local authority cost of monitoring the license compliance and to assist the FSE operator in achieving compliance with the terms of the trade effluent discharge licence.  

How we can help

In order to be complaint  to regulation a FSE must install a grease trapping or grease retention equipment in order to reduce the levels of FOG in the final discharge. Best Management Practices (BMP) must also be implemented within an FSE to minimise FOG production. The design, operation and maintenance of grease management equipment must be fully in accordance with the relevant standards and the manufacturer’s instructions. Undersized or oversized equipment will not produce the required results.

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How do I maintain a solids interceptor?

The collection basket must be emptied on a regular basis, to ensure a free flowing unit. We can tailor make a service contract to ensure your peace of mind. 


Grease traps require regular cleaning and the recovered FOG/water mixture must be collected by a properly licensed waste contractor and disposed of at a licensed facility. We provide full maintenance services so you can rest assured are looked after property and to all the correct standards.

For adequate maintainance of your own greasetraps the minimum cleaning frequency required for grease traps/interceptors is 90 days. However, more frequent cleaning intervals are recommended to prevent grease traps/interceptors from operating poorly or improperly. Some other best management practices we suggest follow include the below:

  • Regular inspection and maintenance of the grease management system
  • Develop a grease trap/interceptor cleaning procedure and maintenance log /record for staff
  • The use of strainers in sinks
  • Dry wiping and/or pre-rinsing of dishes and pots before they are washed in order to in order to remove additional grease
  • Prior to cleaning, allow ice to melt in the sink, this will reduce odours and cause grease to congeal, making removal easier
  • Remove only grease and any accumulations, leave the water behind
  • Flush with warm soapy water after a clean out and a final visual inspection


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What is a grease trap?

It is an effective and hygienic method of separating fat and grease from wastewater flow. It operates by slowing down the flow of hot greasy water which allows the grease to cool. When cool the grease floats to the top of the trap and the water continues down the  waste pipe.

What is a Solids interceptor?

Its function is to collect any small solids that have been discharged and stop them from entering the grease interceptor thereby allowing only liquid into the grease interceptor thus allowing the grease interceptor to function properly.

What maintenance is required?

A grease trap should be emptied and cleaned on a regular basis in order to prevent blockages and odours . we offer tailor made service contracts  for your peace of mind.

Where are solids interceptors fitted?

Positioned on the main drain, just before the grease trap. A solids interceptor is independent of the grease trap, therefore it can be fitted to an existing grease trap regardless of the make or model of grease interceptor.

Where is a grease trap fitted?

Traps should be fitted between the drain run from the kitchen to your sewer system. They should be fitted  close to the source and they are available as indoor or outdoor models and can be sunk in the ground or floor mounted and with a choice of covers to suit all types of flooring materials and load bearing requirements.

Why install a grease trap?

You may require a grease trap if you are business in order to be compliant with legislation. A grease trap will also prevent pipeline & sewer blockages and ensure sewage systems operate efficiently and effectively.


News / Blog

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The Grease Interceptors are sized and designed in accordance with IS EN 1825 Part 1 & 2. They are available as indoor or outdoor models, manufactyred in mild or stainless steel, single our double...

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greasetrap are one of Ireland's first and leading greasetrap providers. No other company offers you a better services when it comes to installing and maintaining your greasetrap

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