ΥΔΡΑΥΛΙΚΟΣ

https://finnqhdm731.wordpress.com/2019/07/11/5-vines-about-%cf%85%ce%b4%cf%81%ce%b1%cf%85%ce%bb%ce%b9%ce%ba%ce%bf%cf%83-%ce%b1%ce%b8%ce%b7%ce%bd%ce%b1-%cf%84%ce%b9%ce%bc%ce%b5%cf%83-that-you-need-to-see/

Plumbing is typically considered given till it stops working. As long as it is working efficiently and effectively we don't understand the crucial function it plays in our everyday lives.