Which device is used to introduce air into the sewer line during smoke testing?

Which device is used to introduce air into the sewer line during smoke testing?

• A. Pump
• B. Compressor
• C. Blower
• D. Fan

Answer: (C)

Smoke testing relies on introducing air into the sewer line to push non-toxic smoke through the piping so leaks show up. That requires a steady, controlled airflow that creates a slight positive pressure in the network. A blower fits this purpose because it delivers a consistent, adjustable flow of air suitable for long runs and variable pipe sizes, easily connecting to test ports and hoses to push the smoke through joints and openings. A pump is designed for moving liquids, not generating air in a way that pressurizes a sewer system. A compressor can provide air but is typically bulkier and less convenient for the continuous, moderate flow needed in smoke testing. A fan might move air, but it generally can’t supply the required pressure and sustained flow for a full network, making it less effective for reliably pushing smoke through all leaks.

Smoke testing relies on introducing air into the sewer line to push non-toxic smoke through the piping so leaks show up. That requires a steady, controlled airflow that creates a slight positive pressure in the network. A blower fits this purpose because it delivers a consistent, adjustable flow of air suitable for long runs and variable pipe sizes, easily connecting to test ports and hoses to push the smoke through joints and openings.

A pump is designed for moving liquids, not generating air in a way that pressurizes a sewer system. A compressor can provide air but is typically bulkier and less convenient for the continuous, moderate flow needed in smoke testing. A fan might move air, but it generally can’t supply the required pressure and sustained flow for a full network, making it less effective for reliably pushing smoke through all leaks.