Years ago we lived in a house that had galvanized pipes for the plumbing. Every time the water was shut off and later restored we would have to clean the aerators on the faucets because they would get clogged with flakes. But we have lived in houses with PVC plumbing for a while and that lesson had been forgotten.
This spring when it came time to de-winterize the RV, my kitchen faucet clogged and quit working. I removed, disassembled, reassembled and reinstalled it. It worked now, except I hadn’t put the aerator back on. When I put the aerator back on the faucet it quit working again. Oh, no! That’s all it was! Now my faucet leaked. I probably ruined an O-ring taking it apart and the whole thing will need replacing.
Hopefully, I’ll remember this next year.