The photo shown is a Baffle T filter. This must be cleaned every time the septic tank is cleaned. Not all septic systems in the Tampa Bay area will systems will have one.
Health department code states that: If the septic system is approx 10 years old or newer it should have this device installed within the septic system. The septic tank should be baffled which means the tank has a wall inside to keep the solids from getting near the exiting sewer pipe.
For more information on how Tampa Bay Plumbers can help you with your next septic pumping project, please call 813-758-6237.