Our shower handle recently became wiggly to the sides. The part sitting on the stem/broach seems to be stripped, causing it not to turn the stem when I turn the handle.
However, this stem doesn't show up in any of my searches.
Best Answer
Looks like it's a Delta shower valve. Matches the one in this link.
Part of the cause of this may be turbulent vs. laminar flow. A high temperature will have a lower viscosity, leading to a higher Reynolds number, which contributes to turbulent flow. Add in surface defects from mineral build up, and you've got enough turbulence to vibrate your pipes to 'banshee levels.'
Best Answer
Looks like it's a Delta shower valve. Matches the one in this link.
http://www.nononsenselandlord.com/2016/01/how-to-fix-a-delta-shower-faucet-leak/