I. Introduction
Thank you for purchasing the Dropmaster DM12. The Dropmaster was originally designed to
remove excess water and odor from fire sprinkler systems prior to repairs and change outs.
However, the Dropmaster DM12 can be used on numerous other applications such as boilers,
heat exchangers, air handlers, chillers, and a variety of closed loop piping systems. This manual
mostly details the Dropmaster being used on fire sprinkler systems; however the same basic
principles can be applied to the aforementioned applications.
The Dropmaster DM12 is a rugged, durable tool built with components rated for continuous
duty use. In certain applications, the Dropmaster is capable of 24/7 operation. By following the
maintenance guidelines in this manual, your Dropmaster should provide years of service and
significant return on investment.
Every Dropmaster goes through a rigorous series of quality control tests in our manufacturing
facility. Our patented fail-safe vacuum system is set by our highly trained technicians to 10” Hg
to ensure the system will not damage grooved couplers. The Dropmaster is built on a custom
designed hand cart, with 10 inch pneumatic tires. This design allows the Dropmaster to fit
easily through most standard doorways and maneuver around job sites. Each Dropmaster comes
with 20-foot-long durable, high quality intake and discharge hoses. Replacement and custom
length hoses, as well as replacement parts, can be order directly from Gecco Inc.
The Dropmaster DM12 has several safety features you should be aware of. The 3/4 horsepower,
high torque – low amp motor has manual thermal overload protection. Additionally, each unit is
supplied with a 20’ GFI protected, 12-gauge power cord. Extension cords should never be
used with the Dropmaster. The vacuum pump and drive motor feature metal safety guards that
must be in place during operation. The Dropmaster DM12 has a newly redesigned noise
suppression muffler system which has been factory tested below 80db.
Your Dropmaster DM12 should always be transported securely, in the upright position. An
optional hitch mounted carrier can be purchased for the Dropmaster. The hitch mounted carrier
makes transporting the unit easier and saves valuable space in your service vehicle.
The Dropmaster system works by drawing a regulated 10” Hg vacuum on fire sprinkler systems
and process piping prior to making repairs and change outs. By eliminating excess water and
odor, repairs and change outs can be made in a neat, clean and timely manner. By eliminating
the need to use buckets and tarps, decreasing set up and clean up times, the Dropmaster can
significantly reduce job time and increase profit. Your Dropmaster DM12 is safe to use with
most antifreeze solutions and can be used for winterization of various piping systems.
The team at Dropmaster prides themselves on their products and world class customer
service. Please read this manual thoroughly before operating your new Dropmaster
DM12. If you have questions or concerns regarding our product, please contact us and we
will gladly direct you through the initial set up, use, and maintenance.
