I’ve been reading about septic drain fields and it seems like they’re one of the most expensive parts to repair when something goes wrong. I’m trying to understand what usually causes these failures in the first place. Some people mention overloaded systems, while others talk about soil saturation or root intrusion. It’s difficult to know which risks are most common for homeowners. I want to avoid mistakes that could damage the drain field over time. What usually leads to these kinds of issues?