Transway Systems Inc. can custom-build your septic truck to meet any requirements your septic business needs. Tank sizes range from 300 gallons, and as large as 5500 gallons. We offer all chassis makes and models, and can custom fit your vacuum pump or blower to your suction demands. Transway will install any and all brands of vacuum pumps and positive displacement blowers. With all of the comfort, appearance and functional options available, your finished truck is limited only by your imagination.