Hi there, so firstly if I wanted to know more about my drainage system what would I search for? Here's some pictures (at the top you can press for more images)
http://imgur.com/Q2j6fYK,pmfZBSB,ZWozDaG,zZVOFMR,K5TzSo2
The kitchen sink/washing machine and also gutter runs to it.
The reason...