PolyJohn Holding Tanks

PolyJohn manufactures a variety of holding tanks and recirculating flush tanks, known for their durability and versatility. These tanks are designed for use in areas where indoor plumbing is not available, such as long-term construction sites and outdoor rest areas.

About PolyJohn Enterprises

Founded in 1984 by Ed Cooper, PolyJohn is a family-owned business headquartered in Whiting, Indiana, near Chicago. The company remains under family leadership, with Ed's sons Mike and Ken Cooper taking over in 2007, and is now managed by Mike's sons Sam (CEO) and Gus (Head of HR). Along with tanks, the company produces a range of sanitation products including portable toilets, sinks, hand sanitizers, and restroom transport trailers.

PolyJohn Holding Tanks

PolyJohn is known for its high-quality holding tanks. These tanks are designed with safety and discretion in mind, ensuring that waste is stored securely. Ideal for long-term construction sites or remote areas without indoor plumbing, PolyJohn's holding tanks can be used interchangeably with various portable toilet and sink models from their product line, providing flexibility and convenience for users.


PolyJohn offers various tank models, including:

  • 154 Gallon Holding Tank - 12.44"H x 46"W x 67"L
  • 250 Gallon Holding Tank - 18"H x 48"W x 72"L
  • 300 Gallon Holding Tank - 16"H x 53.5"W x 95"L
  • Split Tank
  • Comfort XL Recirculating Flush Tank
  • PJN3 Recirculating Flush Tank

Contacting PolyJohn

PolyJohn Enterprises
2500 Gaspar Ave.
Whiting, IN 46394

Phone: (800)292-1305

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