Grease Trap Servicing Log: Track Each Clean So You Know Your Schedule Is Right

This guide is for owners and managers of commercial kitchens in Australia who already book grease trap servicing, or are about to, and want to know whether their current schedule is the right one. By the end you will be able to make three decisions: whether to keep your current gap between cleans, whether to shorten it, and what to ask your cleaner at the next booking.

Most operators only think about the trap when it smells, backs up, or an inspection is due. That forces every decision into a crisis. A one-page log moves the decision to a calm Tuesday.

What grease trap servicing covers

A licensed cleaner pumps out the contents of your trap, scrapes down the walls and baffles, checks the lid, inlet and outlet, and takes the waste away for lawful disposal. Some jobs return the water to the trap and some do not. Your quote should say which. If the wording on the quote confuses you, our post on what pump-out, desludge and full clean mean explains each term line by line.

The cleaner then hands you a record, usually a waste docket or service sheet. That paper is the raw material for everything below. Most kitchens file it in a drawer and never read it again.

Start with the number you cannot change

Before you track anything, find out whether a rule already fixes your gap. For a commercial kitchen, the trade waste agreement with the water authority sets the pump-out frequency. Many operators do not know what theirs says.

That gives you the first decision rule. Your agreement sets the longest gap you are allowed. Your log can only tell you to go shorter, never longer. If the agreement says every three months and your trap looks fine at three months, you still book at three months.

For the wider picture of who sets the rules, read grease trap regulations in Australia. Each utility writes its own trade waste conditions, which is why the answer differs from city to city. The Water Services Association of Australia represents the urban water utilities that write them. In Sydney, start with the Sydney Water pages on trade wastewater.

If you cannot find your agreement, ask the water authority or your landlord. Do this before your next clean, not after.

The five-line service log

You do not need software. A page on the back office wall or a note on a shared phone is enough. Record these five things at every clean.

1. The date and the gap

Write the date of the clean and count the weeks since the last one. This is your real gap, and it often differs from the gap you think you have. A fortnight's slip here and there soon adds up.

2. How full the trap was

Ask the cleaner to tell you in plain words what they found. Was the grease layer thin, thick, or hard against the lid? Was the solids layer low or heavy? Write down their words. You are not measuring to the millimetre. You are building a trend.

3. What the cleaner noticed

Damaged baffles, a cracked lid, a stuck inlet, standing water on the floor around the pit. These are repair items, so give them their own column. Our post on servicing or repair explains how to tell the two jobs apart.

4. The price and what it included

Note the total, the disposal line and any extra for access or after-hours work. Cleaners quote on trap size, service frequency, access to the trap and disposal fees. Two kitchens with the same trap can pay quite different prices, so your own history is the fairest benchmark you have.

5. What the kitchen was doing

Add a line on trade in the weeks before the clean: a new menu, a busy season, a function, a fryer change. Nobody keeps this line, yet it explains the other four.

A worked example

Take a hypothetical café with an under-bench trap. Its trade waste agreement sets a clean every three months. The owner has booked every three months for a year and kept the dockets.

After the fourth clean, the owner lays the dockets side by side. The first two record a light grease layer. The third says moderate. The fourth says the trap was heavy and the cleaner needed extra time. Over the same period, the café added a breakfast menu with eggs, bacon and fried items, and trade picked up.

The decision is clear. The agreement allows three months, but the café's own record shows the trap filling faster than it did a year ago. The owner calls the cleaner and books a clean every two months for the next two cycles, then plans to review. The extra clean costs money. A backed-up trap on a Saturday morning costs more, and an overfull trap invites the smells and blockages covered in our seven-step smell checklist.

Notice what the owner did not do. They did not stretch the gap because the first two dockets looked good. They did not guess. They read four pieces of paper.

What each signal tells you

Use this list to turn your log into a decision. Each item pairs a signal with the action it points to.

• Light grease layer, steady for three or more cleans. Hold your current gap. Do not stretch it beyond what your agreement allows.
• Layer thickening clean after clean. Shorten the gap before the next booking, and ask the cleaner what they suggest.
• Smell or slow drains between cleans. Either your gap is too long for current trade or the trap has a fault. Book an early clean and ask the cleaner to check the baffles and lid. Persistent smells and waste build-up also catch the eye of health inspectors, who check premises against the Food Standards Code.
• A sudden jump after a menu change. Treat the new menu as a new kitchen. Log the next two cleans closely and adjust. Our guide on changing your menu or fit-out covers the sizing side.
• Price creeping up with no change in service. Compare the line items against your earlier dockets and ask what changed. Disposal fees and access charges are the usual culprits.
• Cleaner finds the trap hard to reach. Fix access first. A blocked lid or a stack of crates in front of the pit costs time and money on every visit.
• Gap on paper differs from gap in practice. Book the next clean before the cleaner leaves, so the date is fixed before the docket goes in the drawer.

Questions to ask at the next booking

You now have a record, so put it to work. Ask your cleaner these questions by phone or on the quote:

• What did you find in my trap last time, in your words, and how does it compare with the clean before?
• Do you return the water to the trap or take it all away?
• Is the disposal fee a separate line or built into the price?
• From what you see, is my gap too long, about right, or longer than needed?
• Will you give me a written docket every time, with the date and what was removed?

A good cleaner answers these in a minute. Vague replies tell you something too. When you compare offers, line up three quotes side by side against the same questions, not just the headline price.

When the log should change your supplier, not just your schedule

Sometimes the record points to a problem with the service rather than the trap. Missing dockets, cleans that report wildly different findings, and late or cancelled visits all point to a supplier you cannot manage from paper. Our post on what to do when the cleaner is late or stops answering covers the practical steps.

Look for a pattern, not a single bad day. One late truck is an apology. Three in a row is data. If you decide to switch, take your log with you. A new cleaner who sees your history can quote more accurately, and you are no longer a blank page to them.

If you run more than one site, keep one log per trap. Kitchens fill their traps at different rates, even under the same brand.

Get your next clean booked

You now have a way to check your schedule against your own kitchen, and a rule that your agreement sets the ceiling on your gap. If you do not yet have a cleaner you trust, or you want to test your current price, get three grease trap quotes from licensed cleaners. Grease Trap Quotes sends them by SMS, usually within about a minute of your request. The service covers Sydney today and is expanding to other Australian cities. You can read more about GreaseTrapQuotes or start from the home page.

Have your last docket in hand when you ask. It makes the quotes easier to compare, and it shows the cleaner you know your trap.

If you are a licensed cleaner who wants this kind of work, you can apply to join or look at territory pricing.

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Related reading: Grease Trap Cleaning in Barwon Heads: A Seasonal Planning Guide for Café, Pub and Takeaway Owners.