Re drain cleaning, what worked for me was Buster drain cleaner,
http://www.challs.com/?busterprod=kd...=93&image2.y=2
Bought from
www.tesco.com.
Was very pleased with it, saved me the cost of a plumber.
Nice video of it in action here
http://www.busteronline.co.uk/produc...ideo_high.html
Lyndsay Williams