Stronger Performance. Less Maintenance.
Built specifically for racetrack oxidation ditches, the Twister SDF delivers powerful directional flow with no moving parts in the water. Its stationary, weighted design circulates from the bottom up, preventing sludge buildup, maintaining dissolved oxygen, and reducing costly maintenance. A reliable, low-maintenance solution for long-term racetrack performance.
Oxidation ditches (often called racetracks) have long relied on mechanical brush and rotor aerators that struggle to keep solids suspended, require constant upkeep, and fail to deliver dissolved oxygen throughout the full water column. The TITUS Twister SDF Aerator replaces these outdated systems with powerful, air-driven technology that improves mixing, reduces sludge buildup, and extends equipment life.
Available across North America through our trusted distributor network, TITUS Twister SDF Aerators are proudly Made in the USA at our facility in Casper, Wyoming.
TreatmentRacetracks have long depended on brush, disc, and other mechanical aerators. While these systems throw water into the air to provide aeration, they require constant repairs, suffer frequent breakdowns, and leave operators with high service costs and extended downtime when equipment fails.
Even more problematic, these surface aerators only move water near the top of the racetrack. Without true directional mixing, solids settle to the bottom, creating layers of settled solids that can reach more than ten feet deep. This buildup reduces capacity, increases sludge handling costs, and undermines overall treatment performance.
For municipalities and industrial facilities, the result is the same: unreliable aeration, mounting maintenance expenses, and systems that can’t keep up with long-term wastewater demands.
The TITUS Twister SDF Aerator solves the challenges of racetracks with an innovative, air-driven design that keeps the entire ditch moving. Using a subsurface intake and a 15-degree directional discharge, the SDF continuously circulates water from the bottom up. This prevents material buildup and maintains consistent dissolved oxygen levels across the full depth.
Unlike mechanical aerators that throw water into the air and only reach the surface, the SDF delivers true directional flow that protects solids retention time (SRT) and promotes biological treatment. With no moving parts or electrical components in the water, it eliminates common operational headaches and provides a safer, more durable alternative for long-term racetrack performance.
The Twister SDF Aerator was designed with a modular approach, allowing units to be arranged in banks to fit the shape and size of each racetrack. Whether the channel is shallow or deep, wide or narrow, the system can be configured to maintain full circulation. Units are weighted to stay stationary on the bottom, so operators can place them precisely where flow is needed most.
By circulating water from the bottom up, the SDF reduces the amount of sludge that settles in a racetrack. This has a direct effect on operating budgets, since less sludge means fewer cleanouts, less hauling, and less time spent managing solids. Over time, this can lead to significant cost savings while extending the useful life of the racetrack itself.
Yes. The SDF’s blower system is compatible with dissolved oxygen probes and automated control packages. This makes it possible to fine-tune aeration based on real-time system demand, reducing energy use during low-load periods while maintaining optimal conditions for treatment. Automation helps operators save energy and improve overall process stability without requiring constant manual adjustments.
Installation is straightforward, since each unit is pre-weighted to sit securely on the racetrack bottom without tethering or anchoring. A small crane or lift sets the aerators in place, and with no in-water electrical connections or moving parts, crews can complete setup quickly and safely compared to mechanical aerators that require extensive infrastructure.
The subsurface intake and directional discharge design keep water moving below the surface, which eliminates freezing issues common with surface aerators. This ensures reliable mixing and oxygen transfer even in cold climates, making the SDF a dependable choice for municipalities and industries that operate year-round in harsh weather.
The subsurface intake and directional discharge design keep water moving below the surface, which eliminates freezing issues common with surface aerators. This ensures reliable mixing and oxygen transfer even in cold climates, making the SDF a dependable choice for municipalities and industries that operate year-round in harsh weather.