---
title: "Restaurant grease interceptor and backflow test"
description: "Before and after photos of a restaurant drain cleaning visit: grease interceptor pump-out, line jetting, backflow test, 2 technicians, 3 h 30."
url: "https://plumbo-astro.pages.dev/projects/restaurant-grease-trap-backflow/"
date: "2026-09-24"
---

# Restaurant grease interceptor and backflow test

> Before and after photos of a restaurant drain cleaning visit: grease interceptor pump-out, line jetting, backflow test, 2 technicians, 3 h 30.

## The job

A restaurant's prep sinks were draining slowly, and the floor drain backed up during dinner service. The grease interceptor was overdue for a pump-out, and the yearly backflow test was due the same week.

## What we did

Two technicians arrived at 6 a.m., before the kitchen opened. They pumped out the grease interceptor, scraped the walls, and checked the baffles and outlet. The kitchen line was then jetted from the sinks to the interceptor to clear the built-up grease. Last, the backflow preventer on the main supply was tested and tagged, and the report was filed with the water authority.

## The result

The sinks and floor drain ran freely for lunch service. The restaurant moved to a pump-out every eight weeks, with the backflow test booked on the same visit each year.