You’ll need to balance CO₂ levels—too low and rats ignore it, too high and it could push them away. Not many DIYs get that right.
Make sure the trap and surrounding wiring/tubing are sealed. If gas leaks, rats will track odd smells or avoid it entirely.
@GasTrapGlen Did you test any designs? I’d love to learn about your flow rates, tubing diameters, or how long your CO₂ source lasted.
Also plan maintenance—refilling the CO₂ generator, cleaning tubing, preventing clogs. The best DIY tech will fail if not maintained.
Even if it doesn’t catch a rat first try, it could act as an attractant enhancement to guide rats toward conventional traps. Hybrid approach.