Abstract: The present invention generally comprises a storage vessel for the polymeric slurry chemical, a vapor recirculation system, a chemical recirculation system, a means for chemical temperature control, a means for measuring storage vessel level, a means for metering and pumping chemical, and a means for controlling apparatus. The vapor recirculation system, chemical recirculation system, means for chemical temperature control, means for measuring storage vessel level, means for metering and pumping and means for controlling apparatus are housed in the pumping equipment container and are connected to the storage vessel by control conduits, and piping for vapors and liquid chemicals to make the complete apparatus. The apparatus is used to maintain slurry materials in a usable state and to inject the slurry materials as required for specific applications, such as injecting drag reducing agent into operating pipelines.