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How to Fix a Leaking Tap with Chemistry | Szydlo's At Home Science

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, well-loved 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:   / ri-science   Our editorial policy: http://www.rigb.org/home/editorial-po... 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.