Information for Store Operations

Steps for Checking a Restaurant Drain When It Is Clogged or Slow

First, identify where drainage is slow, whether there is an odor, and whether there is any backflow or leakage. The causes and appropriate response vary depending on whether the issue is at a drain, U-shaped gutter, grease trap, or drainpipe, so check each location where symptoms occur. Do not mix chemicals or take apart the piping. If there is backflow or leakage, contact your facility manager or a qualified contractor.

Illustration of a kitchen drainage area inspection
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Trace the cause from the slow-draining area

We check where drainage is slow—such as the sink, drain opening, grating, U-shaped drain, grease trap, or drainpipe. If there is backflow, odor, pests, or symptoms that worsen only during business hours, we can address surrounding cleaning and equipment concerns together.

  • Please tell us where the drainage is slow, whether there is any backflow, and when odors occur.
  • We check for grease, residue, slime, the pipe layout, and possible equipment issues.
  • We will distinguish between what can be handled through cleaning and what should be referred for equipment inspection or repair.

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Areas that are easier to assess in photos

Photos of drain openings, grease traps, U-shaped channels, drain grates, areas beneath sinks, and locations where clogs occur can help determine whether to start with high-pressure drain pipe cleaning, grease trap cleaning, or drain grate cleaning.

  • Photos of areas prone to blockages, where odors occur, or where backflow has happened.
  • Photos of the grease trap interior, drain, U-shaped channel, and grating.
  • When high-pressure washing or grease trap cleaning was last carried out.

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For Recurring Blockages, Consider Regular Maintenance

Even if high-pressure washing or grease trap cleaning improves the issue, it may recur at stores with high oil volumes or many operating days. We keep photos and records after the work, and explain which tasks are one-time fixes and which should move to regular maintenance.

  • We record drainage after cleaning, how odors return, and any outstanding issues.
  • We will let you know which other areas should be checked, including kitchen floors, grating, and pest control measures.
  • We will keep store-by-store records of the next service date, work performed, and work reports with photos.

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Initial steps and precautions when backflow or leaks occur

If wastewater is backing up or a water leak continues, secure the surrounding area, stop using water where possible, and contact the facility manager. If water may reach electrical equipment, do not approach it; follow the instructions of the manager or a specialist contractor.

  • Photograph the condition of the drain opening, floor, and adjacent areas, and record when the issue occurred and how water was being used.
  • Do not mix multiple drain cleaners or forcibly disassemble pipes or equipment.
  • Follow the emergency contact procedures for the store or building and consult the property management company or a specialist contractor.

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Related Official Information

HACCP

Ensuring Compliance with Waste-Generating Business Operators’ Responsibilities

Waste Management and Public Cleansing Act

Even when you entrust the work to us, there are regulations your store should be aware of. Please confirm any final decisions with the relevant government agency, local authority, public health center, fire department, or specialist.

Official information for reviewing the basics of food hygiene management and hygiene management in line with HACCP.

Official information for confirming responsibility for handling waste generated by business activities.

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Cleaning services for different blockage locations

High-Pressure Pipe Cleaning

Grating Cleaning

Grease Trap Cleaning

Drain pipes, drain grates, and grease traps are separate areas. If there is a backup or leak, do not attempt the work yourself; consult the facility manager or a specialist.

If drainage is slow, wastewater backs up, or odors rise, we check the scope of high-pressure cleaning from the drain opening through the drain pipes.

We clean slime, grease films, food debris, and odors from kitchen drain grates, U-shaped drains, and surrounding floors, helping reduce causes of slips and pest activity.

QUESTIONS / FAQ

Questions About Steps for Checking a Restaurant Drain When It Is Clogged or Slow

What should I check first when drainage is slow?

First, we’ll ask where drainage is slow, whether there is an odor or backflow, and what time of day the issue occurs. We’ll identify whether the grease trap, drain, U-shaped gutter, or drainpipe is affected and determine what cleaning can address. Send us the number of stores, the areas to be serviced, and convenient work times to request a quote.

Should I request grease trap cleaning or drain pipe cleaning?

If there is a strong odor or heavy soiling around the tank, check the grease trap; if several drains are slow, check the drain pipes. The symptoms may be related, so we review photos and when the issue occurs, then set practical priorities.

What should I do if drain clogs or odors keep returning?

After a one-time cleaning to remove heavy buildup, you can determine the cleaning frequency by monitoring how quickly it returns. Reviewing the grease trap, drains, kitchen floor, and pest control together can help identify areas prone to recurring problems. Send us the number of stores, work areas, and times that are convenient for the work to request an estimate.

Can you also handle drainage and pest control for stores inside a facility?

Yes. We clearly explain what we need to prepare a quote or arrange the work based on drainage flow, grease traps, kitchen floors, and areas where pests are active, in accordance with facility rules. We also agree on odor control and work hours in advance to avoid affecting shared areas or neighboring stores. Send us the number of locations, areas to be serviced, and preferred working hours to request a quote.