Sewer Bypass Pumping

Bypass pumping is a critical element of many rehab projects. Temporary bypass sytems are used to transfer water supplies and sewage flow, so that these vital services are uninterrupted during construction.

Griffin Dewatering and Griffin Pump and Equipment offers an ever increasing line of pumps to fit nearly any bypass application. Whether it be above ground non-clog diesel driven pumps, above ground self priming diesel or gasoline driven pumps, hydraulic driven submersible pumps, or electric driven submersible trash pumps, Griffin can provide a pump to fit your need. Simply put, if we do not have a pump in our standard line, we’ll build a pump to fit the need.

Griffin’s exclusive installations and experience guarantee a quality pump and system for applications from a few gallons to several thousand of gallons per minute per pump. Pumps from as small as 2” up to 24” are readily available for turn-key contract, rental or purchase.

Material handling (trash) pumps are available with several options and configurations.

• Griffin's experience includes simple and complicated sewer bypass projects.
• Griffin maintains a fleet of equipment to handle the small, as well as the large, sewer bypass projects nationwide.
• Griffin has successfully installed and operated bypasses that have exceeded 100 MGD. With Griffin's nationwide locations and resources we can handle your large or small sewer bypass pumping needs.
• Griffin pumps and accessories can handle all your bypass and pumping needs on your next sewer rehab project.

Replacing a siphon sewer under the Iowa River. Griffin is bypassing the sewage from the old structures while the new sewer connections are made. Total volume is about 6,300 gallons per minute.

Hydraulic submerisible pumps & power units and vacuum-assisted non-clog pumps being used on a sewer bypass project in Phoenix, AZ in which the presumed peak flow was actually half the actual flow. Once the project started Griffin found a way to double the system.

Griffin bypass of a 30” sewer line. The equipment was sized for a peak flow rate of 24 million gallons per day (16,667 gallons per minute) and consisted of 4 primary pumps and 2 standby pumps. Project was located in Orange Co, California.