©2014 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice
Thermaco, Inc. • 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651
MNL-ISCU40000 3
40000 Series
Big Dipper
®
Internal Strainer System Overview
The Thermaco, Inc. Big Dipper
®
Automatic Grease and Oils Removal System removes free-floating
grease & oils from kitchen drain water flows. As most food service facility managers already know,
grease buildup within a building’s plumbing drainage system is a major cause of problems due to
drain line blockages. These problems jeopardize normal operations as well as create health and
safety hazards within the facility itself.
The proper installation of a Big Dipper System can reduce or eliminate grease problems. Use
of the Big Dipper assures minimization and/or elimination of costly sewer surcharges and fines
through efficient separation and removal of free-floating grease & oils. In addition, the Big Dipper
also helps reduce or eliminate pumping and disposal costs associated with conventional grease
traps or interceptors. The recovered grease & oils are substantially water-free and are suitable for
recycling by local rendering and/or biodiesel companies.
The Big Dipper system is an automatic, self-cleaning device. As greasy kitchen effluent drains from
kitchen fixtures, the unit traps the grease & oils. These separate from the effluent and rise to the
surface of the separator tank. The unit automatically skims the trapped grease & oils and transfers
the grease & oils to a collection container. A digital control maintains the self cleaning operation,
activating the skimming wheel periodically based on the setting chosen. Only the “cleaned” water
exits the unit and flows into the facility drain lines. The Big Dipper IS automatic systems operate most
efficiently when servicing single fixtures such as a 1 to 3-compartment sink or a pre-rinse station.
The Big Dipper system’s compact footprint allows installation directly at the source where grease
problems originate. The system design also allows easy maintenance and operation requiring
only a minimal amount of daily and weekly maintenance to maintain peak operating performance.
The Big Dipper system design allows for maximum installation flexibility. Reversing the system
operation is a simple as rotating the cover assembly of the unit.
Grease interceptors, grease traps, automatic recovery units, grease removal devices and other
similar plumbing devices receiving kitchen flows from sinks, floor drains, woks and other food
bearing sources may generate odors. There are many factors influencing odor evolution and dis-
semination. These include room ventilation, kitchen menu, ambient temperatures, ware washing
practices, grease/oil input, daily input fluid volume,
sanitizers, installation plumbing design and product
maintenance/upkeep. Odors are usually prevented
by good area ventilation, frequent fluid inputs, good
product maintenance practices and proper product
installation. Additional steps, including aeration,
chlorination, improved area ventilation and ad-
ditional maintenance control, may be needed at
some sites.
Big Dipper
®
Internal Strainer (IS)
System Overview
