https://www.pearstairs.co.uk/squeaking-staircase/#:~:text=The%20main%20causes%20of%20squeaking,may%20also%20have%20become%20unstuck.
https://m.youtube.com/watch?v=dRoCUl4sSDA
https://m.youtube.com/watch?v=3XQY8xE71G8
http://www.thisoldhouse.com/platform/amp/stairs/21015214/how-to-fix-squeaky-stairs
Plenty more to be found for those prepared to do the simple looking.
Ftuit, November 2021
