On Monday, 15 January 2018 13:31:31 UTC, T i m wrote:
On Mon, 15 Jan 2018 05:12:58 -0800 (PST), tabbypurr wrote:

snip

Having undone that screw on pumps while running and observed resulting graunching noises and stalling, I am therefore the one that has the fact on that.

Could that be because the pump may have been stalled because of either
debris in the impeller or a failed bearing and you moving it again
simply highlighted that fact? shrug

Cheers, T i m

The last pump wasn't stalled when I undid the whatsit. It didn't sound too healthy though, speed unstable & noises. Since it ran fine afterwards there must have been muck in there.

Beyond that I really don't know, I could only guess.


NT