5 Signs Your Grease Trap Needs Cleaning

Short answer: slow drains, foul smells and grease backing up are the clear ones. The catch is that by the time you notice them, the trap is usually well past due. Here are the signs, and why a schedule beats waiting for them.

Slow draining sinks

The first thing most kitchens notice is water taking its time to drain. A full trap cannot move wastewater through, so sinks and floor drains slow down. If the kitchen is draining sluggishly, the trap is the first place to check.

Foul odours in the kitchen

A neglected trap smells. Trapped fat and food break down and push a rotten, sulphur-like odour back up through the drains into your kitchen and dining room. Customers notice that before you do, and it is hard to mask.

Backups and overflows

When grease has nowhere to go, it comes back. Wastewater and grease can back up through floor drains and sinks, which is a health risk and a fast way to lose a night's trade. This is the point where a small service bill becomes an emergency call-out.

Visible grease near 25% capacity

You do not have to wait for problems. Check the trap. When the combined grease and solids reach 25% of capacity, it is time to clean, well before any smell or backup. A dipstick check takes a minute and saves you the drama.

Pests and flies

Built-up grease and food waste draw cockroaches, flies and rodents. A sudden pest problem near the trap or the drains often means the trap is overdue and feeding them.

The bottom line, do not wait for the signs

Slow drains, smells, backups and pests all mean you are already late. Run a regular check against the 25% rule and book on a schedule, and you fix the problem before it ever reaches your customers' noses.

Spotting any of these? Compare quotes from licensed operators near you. Related: how often to clean and the 25% rule.