Superior Signal
Superior Signal 30-L Manhole Liquid Smoke Blower
Superior Signal 30-L Manhole Liquid Smoke Blower
The Superior Signal 30-L Manhole Liquid Smoke Blower is a smoke generation system designed for sewer line testing, leak detection, and confined-space inspection
Description:
Superior Signal 30-L Manhole Liquid Smoke Blower
The Superior Signal 30-L Manhole Liquid Smoke Blower is a high-capacity smoke generation system designed for sewer testing, leak detection, and confined-space inspection. It produces controlled dry smoke output to help identify breaks, infiltration points, and unauthorized connections in underground piping systems.
Designed for Large System Testing
Liquid smoke blowers are commonly used by municipalities, contractors, and fire departments to evaluate sewer infrastructure. The 30-L model is designed for larger systems requiring increased airflow and smoke volume to push smoke through extended or complex networks.
In addition to sewer testing, the unit can also be used for general ventilation applications.
Dry Smoke Generation System
The 30-L system is engineered to produce dry smoke output, reducing condensation and residue typically associated with liquid smoke systems.
• Large insulated and baffled heating chamber supports efficient fluid-to-smoke conversion
• Stainless steel precision-machined injector nozzles regulate fluid delivery
• Micro-control flow valves support consistent smoke output
• Designed to minimize wet smoke during operation
High Airflow Performance
The 30-L blower delivers increased airflow capacity for larger-scale testing operations.
• Approx. 4,300 CFM output
• Field-adjustable airflow and pressure settings
• Designed for pushing smoke through long or high-volume sewer systems
Durable Construction and Design
The unit is built for repeated field use with a low-profile, heavy-duty design.
• 30" diameter cast aluminum base for stability
• 10-blade propeller fan for airflow efficiency
• Single-unit metal construction with integrated carrying handles
• Approx. 65 lb carrying weight
Power System
• Powered by a 5 HP Briggs & Stratton gasoline engine
• Designed for portable operation in field environments
Additional Functionality
Beyond sewer testing, the 30-L system can be used for:
• Confined-space ventilation
• Air movement in maintenance operations
• Supplemental airflow support in utility environments
Compliance and Standards
• Meets recommendations of WEF, EPA, and NASSCO
• Designed for municipal sewer inspection and testing programs
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.








