'Half-ass fixes result in half-ass results; as you now know.'
Really. I fail to see how a new inlet screen or bottom disc can outdo a properly cleaned one, and I used to sell them. You'd have to be blind to not see any difference to make them not work.
I pulled pumps out of both my '00 and '02 when they both started cutting out and dying, and simply cleaned filters and threw pumps back in the cars, they've worked fine like forever since. Both the early design. The silicone diaphragm must seal as he says.
Yes, I may possibly get to do it again, but it's a car, things break all the time. I haven't spent one cent on pumps yet.
Some of this can come from where you get your fuel. I've changed my location trying to help it. One car had like white snot all over filters, the other had fine red rust mud. At least the rust mud came from fuel supply, there is nothing to rust in the tank.