Go with the 2% salt ratio... it's the science behind grandma's method really.

Bought a cheap set of hex keys once to save like five bucks, tried to tighten a bolt on my truck and the head twisted right off inside the wrench. Had to drill the whole thing out, took me a solid hour cussing in the driveway. Now I keep a little pouch of good tools in my glovebox, learned my lesson the hard way just like you did with that camera.

@grace926, you're right that even a small pond can be dangerous. I knew someone who fell into a neighbor's koi pond, just a few feet deep, but the liner was slippery and they hit their head on the edge. Ended up with a concussion and needed stitches. People don't think about how hard a concrete bottom or a sharp rock can be when you're falling wrong. That "small splash" can absolutely turn into a trip to the ER. Appreciate you bringing up that article, it's a good reminder for everyone.

So what's even in those eco sprays?

That part about chasing weird registry issues is exactly why I wipe. A fresh OS install leaves the old file system in place. Malware can hide in leftover partitions or the recovery sector. A full format destroys those hiding spots. It's the only way to be sure you got everything. The extra time up front saves more time later.