Septic system - Conventional (anaerobic) or Aerobic?

[2manyrocks]

I would absolutely want to be certain that there isn't a clog somewhere in the line from the bathroom sink that is backing up.

I couldn't get my kitchen sink to drain right despite taking out the trap and cleaning the line as best I could until I used this power plunger on it. https://www.harborfreight.com/power-plunger-99644.html?_br_psugg_q=drain+plunger.