![Growth Through Grease](https://cole-pumper.imgix.net/https%3A%2F%2Fwww.pumper.com%2Fuploads%2Fimages%2Fdsc_0091.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=083d56672adf4bc3cdc058e827d2573c)
When Ron Crosier bought his father’s portable restroom and septic pumping business, he set his sights on diversifying into more lucrative markets: cleaning grease traps and hauling waste from coal mines and privately owned treatment plants.
That was in 1995. And by several...