I’ve been burned by biofilm before—missed cleaning my gutters for just a couple weeks and ended up with this slimy mess in the first flush diverter. It’s wild how fast it builds up, especially in humid weather. I tried one of those self-cleaning pre-filters last year (the kind with the rotating brush inside). Honestly, it helped with leaves and big stuff, but the fine gunk still made its way through. Maintenance was easier, but not hands-off like I hoped.
As for city systems, from what I’ve seen in some pilot projects, there’s a lot of remote monitoring now—sensors for flow rates and pressure drops to flag clogs. Still, someone’s gotta go out and physically check things when alarms go off. Doesn’t seem like there’s any true “set and forget” solution yet, at least not if you want to avoid surprises.
Yeah, biofilm is a sneaky one—seen plenty of folks surprised by how quick it builds up. Those self-cleaning filters are decent for the big stuff, but you’re right, the fine gunk always finds a way. Even with all the new tech and sensors, there’s still no magic fix. Maintenance just keeps finding ways to stay interesting, doesn’t it? I guess the “set and forget” dream is still a ways off for most setups.