The Waterous Fire Troll Foam Proportioning System is an easy to operate system that can be inserted in the plumbing between the pump outlet and the live reel or other discharge points on the fire engine or can be inserted in a hose lay at any location.

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  • Maintains continuous foam flow under varying water pressures and volumes, needing no physical adjustments.

  • Does not exceed 1.0% foam concentrate use under normal operating conditions.

  • Adjusting the metering valve allows for foam concentrate percentages less than 1.0%.

  • No moving parts allows for low maintenance – requires flushing after each use.

  • Produce wet or dry foam

  • Lightweight and compact size

  • Add Class A Foam to portable pumps



  • The Fire Troll Model FT-150 with 1-1/2" plumbing is more adaptable to Type 3 engines and portable pumps with long hose lays. Fire Troll has been successfully used in hose lays of 1,000 feet (300 meters) or more and on moderate to steep slopes.

  • Fire Troll Model FT-150 consists of 1-1/2" plumbing with pipe threads, positive connect hose assembly with foam concentrate graduated-metering valve, capper kit designed to transfer concentrates from five-gallon foam pails.

  • Dimensions: 13 in. x 7 in. x 3-1/4 in. (33 cm x 17.8 cm x 8.3 cm)

  • Weight: 17 lbs. (7.7 kg)



 Fire Troll FT-150 
Preferred Specifications
Specification Sheets Instructions

Sales/Application/Service Help

Industry-leading sales and support.

When you purchase Waterous equipment, not only do you get quality products, you get quality service. Our expert service technicians are the best in the business and they are always happy to answer any service questions you might have. The numbers for our service and training specialists are listed below for your convenience. If you have a general service question please call our main number and our staff will kindly direct you to the appropriate department.

Sales/Applications Assistance

Phone: 651-450-5234 (Press 3)

Service Assistance
Phone: 651-450-5200
Fax: 800-488-1228