Hi guys. A friend of mine wants to do up his bathroom and relocate the toilet. The toilet will be moved by 1.5 m. so my question is how difficult is it to add 1.5 m of extention pipe under the floorboard by myself. Basically i will have to put cement weld stuff on both the 1.5 m of extention pipe and fitting, make sure that the pipe goes straight into the fitting and not in an angle and push all the way through before the cement weld dries. Is that a two men job? Would it be better if i used a flexible pipe and how reliable are 110 mm flexible pipes expecially under floorboards? Thank you very much for your time.