Andrew explores some of the chemical and mechical causes for leaking taps as well as explaining the inner mechanisms of various taps.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe

Chapters:
00:00 Introduction
02:53 The chemistry of limescale
04:30 Limescale removal with hydrochloric acid
07:04 Household limescale removers
19:30 Tools to open up a tap
24:38 How a tap works
28:36 Inside a modern tap
31:45 Further issues with older taps
35:28 Lever taps
36:52 PTFE tape
38:20 The Rolls Royce of taps
41:35 Polishing metals

Andrew Szydlo is a chemist and secondary school teacher at Highgate School, wellloved by pupils and Ri attendees alike. He has given public lectures around the country, been featured on TV shows and has become a popular regular face on our channel.

The Ri is on Patreon:   / theroyalinstitution  
and Twitter:   / ri_science  
and Facebook:   / royalinstitution  
and Tumblr:   / riscience  
Our editorial policy: http://www.rigb.org/home/editorialpo...
Subscribe for the latest science videos: http://bit.ly/RiNewsletter

Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link.