Exsis i bathroom basin waste pipe

[Rosie and David]

The basin system is causing me real problems. This is the basin that tilts and behind is a flexible convoluted pipe. Last year it split and I made a temporary repair. I have now replaced the tube with a new convoluted pipe and resealed everything (having removed the basin). Now the tube seems to have collapsed despite being reinforced which means the waste is very slow to drain. Anyone got a similar type? Any solutions would be appreciated

 

[Detnor]

I have a similar tube, I had real problems with slow drainage but must be a different issue as your tube is new. Hymer had fitted a flow restrictor, simply reduced the diameter of the pipe, main issue was tooth paste and soap that had caught on the pipe ridges. Got a cleaning brush down (bought in poundland) and solved the slow drainage.

 

[Stealaway]

Could you not shorten the flexible piece with some solid?
Try and buy some stronger reinforced flexible tube?