Well if you have flushed the living sh**t out of them could that be why they are limp? Maybe just let them try to dry out.....don't toss them yet unless they just continue to go downhill. My assumption would be that if you flush enough you would flush EVERYTHING out and be left with soil with nothing it it.

I think it's not that they are plants....they represent how much work you have invested. I totally feel for you.