Grease Trap Sizing and Installation: What Commercial Kitchens Must Confirm

Information needed before a model can be recommended

Start with the number and type of connected sinks, pre-rinse stations, dishwashers or other fixtures. Record bowl dimensions, operating pattern and whether several fixtures discharge at the same time. The kitchen menu and preparation method also influence the likely grease and solids load.

A model description or litre capacity alone does not prove suitability. The selection should be checked against expected flow, retention requirements, maintenance frequency and any project specification supplied by the consultant, landlord or authority.

• Connected fixtures and simultaneous use
• Peak wastewater flow and kitchen operating hours
• Expected fats, oils, grease and food-solids load
• Available footprint and access clearance
• Project specification and documentation requirements

Site measurement, pipe route and access review

Measure the available width, depth and height, then identify inlet, outlet, vent and floor levels. Photographs should show the complete route rather than only the empty floor area. Existing pipe size, direction, fall, nearby equipment and the possibility of future removal all affect the installation plan.

The lid must remain accessible after counters, cabinets or equipment are installed. A product that fits physically but cannot be opened and cleaned safely is not a maintainable solution. Where measurements or levels are uncertain, a site assessment is more reliable than estimating from a single photograph.

Material and construction considerations

Stainless steel and plastic-based units can both be appropriate in different environments. Selection should consider corrosion exposure, temperature, physical protection, installation location, lid strength, joint quality and the manufacturer’s intended use. Marketing terms should not replace a product data sheet.

For outdoor or below-ground arrangements, loading, waterproofing, access covers and civil protection may become part of the project. Those requirements are separate from a standard under-sink product supply and must be confirmed in the scope.

Separate every part of the quotation

A clear quotation distinguishes the unit, delivery, removal of an existing trap, disposal, fittings, pipe modifications, supports, civil opening, electrical isolation if equipment is nearby, installation, water testing and handover documents. Optional cleaning or maintenance should also be shown separately.

This separation protects both parties from assumptions such as ‘installation included’ when the site needs coring, excavation, a new route or after-hours work. Any offer is valid only for the conditions and exclusions stated in the approved quotation.

• Product make, model, material and dimensions
• Quantity and delivery location
• Existing-unit removal and waste handling
• Pipe fittings and route changes
• Civil, access or support work
• Testing, photographs and handover documents

Approvals, specifications and handover records

Different projects may ask for product specifications, drawings, material information, installation photographs, service labels or authority-related documents. Fixpert Solutions can organize the available product and installation information, but final acceptance remains with the relevant consultant, landlord or authority.

Do not publish or promise a universal ‘approved’ status without a specific product, document and project requirement. Keep the final submittal, quotation, installation photographs and maintenance instructions together for future inspection or replacement.

Maintenance access and cleaning plan

The trap should be inspected and serviced according to kitchen load, capacity, observed accumulation and any applicable site requirements. Waiting for overflow or severe odour usually means the system is already affecting operations. A written log helps the operator adjust the interval using actual evidence.

Cleaning access must be safe and practical. The service route should allow the lid to open, waste to be removed without contaminating food areas, and the unit to be inspected for damaged seals, baffles or connections. Downstream drainage may also need attention when grease escape has occurred.

What to send for a product and installation review

Provide the emirate, exact site, business type, kitchen status, connected fixtures, photographs, space measurements, inlet and outlet information, preferred material if specified, quantity, timeline and documentation needs. State whether this is a new installation or a replacement and whether the kitchen can stop operating during work.

Fixpert Solutions will use the available information to identify the next step, which may be a product quotation, a request for additional measurements or a site assessment. Final capacity and installation details must be confirmed against the approved scope.

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