As a cost-effective option, T-L also offers a Worm Gear Drive. Like T-L's Planetary Gear Drive, it is the most effcient of its kind available today. That's because no electric system on the market today offers continuous movement like hydrostatic drive. And continuous movement is the key to eliminating the wear and tear of stop-start electric operation. T-L gears are totally enclosed, coupled directly to the hydraulic motor, eliminating the need for additional gear reductions. Conventional U-joints, and other exposed moving parts are also eliminated to give you years of trouble-free service. Motor and gear drive are easily accessible in case service is ever required.

T-L's tough construction begins with heavy-duty steel mainline pipe, truss rods and tower structures. All are galvanized in T-L's own modern facility to ensure uniform quality. The hot-dip galvanization process chemically seals the steel components for superior corrosion resistance and longer life. T-L's heavy-gauge mainline pipe is rolled into varying diameters to give you maximum water flow, minimum friction loss, and reduced pumping costs. Automatic drains at every tower empty the system after each use.

Heavy-duty galvanized rods with truss tabs, notched before welding, give you uniform stress on the truss rod connection. One bolt could hold the connection, but T-L uses two bolts to reduce the shearing force on each bolt and as a back-up in the event one bolt fails. It's one of the many added features that keeps T-L running trouble-free longer.