Frequently Asked Questions

Looking for quick answers about grease interceptor production, design, and installation? Search our frequently asked question tool below.

When are grease interceptors typically used?
Many municipalities require the use of some system to effectively eliminate fats, oils, and grease (FOG) from clogging public sewers and generating unsanitary wastewater backups. Every restaurant, senior living center, daycare, or food production facility that uses grease must handle the problem of how to prevent it from entering the public water system, and grease interceptors are a common method to solve this problem.
What are the most common types of concrete grease interceptors?
Baffle and stand pipe systems are the most common configurations of precast grease interceptors.
How much water can a precast concrete grease interceptor handle?
Precast grease interceptors can handle anywhere from 500 to 15,000 gallons of moving water.
Why should I use precast grease interceptors for my next project
Installation is fairly simple. In contrast to poured in place structures, precast installation can be completed with simple machinery and a small group of professionals.
What are some design considerations pertaining to precast grease interceptors?
  • Shape and design to collect and remove waste in accordance with state and municipal standards
  • Concrete strength and design that withstands the pressure of vehicular traffic if located beneath a roadway
  • Concrete that can handle applicable thermal effects
  • Easy access for waste removal and maintenance
What are the main considerations in choosing the right precast grease interceptor size and shape?
The main considerations involve choosing shapes and designs that conform to ASTM and municipal standards for achieving the proper rate of flow to collect fats, oils, grease, and sediment and prevent the clogging of sewer systems .
How complicated is precast grease interceptor installation?
Most products can be installed in just one day with the use of small equipment.
What are the steps of precast grease interceptor installation?

Basic instructions for typical installation can be found here.

What equipment and supplies are necessary for precast grease interceptor installation?
  • Excavator or backhoe
  • Vibratory compactor and/or sheep’s foot roller
  • Any proper bracing that is required
  • Sealants, grouts, and mastic as required
  • All proper safety equipment and PPE
What are some advantages of precast that installers need to know?
  • Ease and speed of installation
  • In-stock availability of many standard sizes
  • Customization to fit project needs
  • Compelling upfront costs as many required materials are supplied by producers (ie. Sealants, grates, mastic)
  • Dedicated and knowledgeable sales staff

Need more info?

Rethink Precast Marketing has an experienced team that is equipped to help you weigh the considerations of installing a precast concrete grease interceptors. They can also guide you to a qualified supplier near you. Reach out today for more information.