What your dipstick might not tell you about effective pretreatment
- Oct 27, 2015
Many local sewer ordinances require that food service establishments make their grease interceptors available for periodic inspection to ensure they’re working correctly, keeping fats, oil and grease (FOG) out of the wastewater system.
And the tool of choice for many pretreatment coordinators and other professionals is the dipstick (or popularly, the Sludge Judge, a specific brand of dipstick). It’s a long, clear plastic tube that enables anyone to quickly measure how much grease a grease interceptor has accumulated.
While dunking a dipstick into a grease interceptor may allow you to quickly determine whether or not it needs to be emptied, it doesn’t really tell you how well the interceptor is keeping grease out of the wastewater system.
