I hear you on that polymer tooth snapping clean off, that's a rough day when you're pulling pieces out of the pump. @colethomas brings up a good point about the rock and clay, because our Columbia River mix is mostly sand and small gravel with nothing much over an inch. It sounds like these teeth only work in the right conditions, and if you're dealing with any real material they're not worth the risk.

Ever notice how the simplest fixes are the ones we forget first? That jumper wire trick feels like a lost art now.

That's the kind of tech that pays for itself in one use.