New Nozzle Design Reduces Risk of “Blown Toilets” During Sewer Cleaning

A redesigned sewer cleaning nozzle may offer a simple solution to one of the most frustrating issues for municipalities and operators: the dreaded “blown toilet.”

During sewer line cleaning, sudden spikes in air pressure can send wastewater erupting out of residential toilets — a costly and unpleasant event that leads to cleanup, complaints and community headaches. The phenomenon, often caused by improper technique or airflow buildup behind sewer debris, has long challenged municipal crews and contractors.

Even common missteps like neglecting to open the upstream manhole can contribute to pressure buildup, multiplying the risk of blown toilets during routine maintenance.

A New Tool for a Long-Standing Problem

To help address the issue, KEG Technologies has introduced the Toilet Tamer Nozzle, a new, more affordable option. Designed specifically to reduce air pressure buildup during sewer jetting, the product brings a more accessible option to fleets that previously had to share a single high-cost specialty nozzle across crews.

KEG Technologies

Unlike older models, the Toilet Tamer features a tapered, football-like design for smooth navigation through misaligned or separated pipes. It uses a combination of strategically placed forward-facing jets to disrupt air movement and rear jets to maintain propulsion and cleaning power. The result: a dramatic reduction in vacuum pressure and fewer incidents of residential backflow.

Additional Benefits

The Toilet Tamer is classified as a Tier 3 high-efficiency nozzle, capable of achieving up to 90% water efficiency. For crews, that translates into more line cleaned per tank and fewer interruptions for refills. The nozzle also supports a streamlined approach to sewer cleaning, reducing downtime and labor while helping avoid costly service calls related to residential damage.

Most notably, the simplified design has made it significantly more affordable — roughly one-third the cost of its predecessor — making it a practical option for everyday use rather than a niche solution.