Convoluted grey water waste hose

Normally with a jubilee clip.

I actually extended mine but didn't touch the jubilee connection as it was very rusty and didn't want to damage the tank!

I use a fixed hook/clip to hold the pipe plus a very small bungee cord as insurance!

I fitted a much longer new pipe with tap on the end ,to save the emtying point "shuffle" and fixed it to skirt of m/van with terry clips 

Mines just a jubilee clip which I have just repaired as the hose split near the tank. 

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many of the waste fittings on vans are as cheaply made as can be got away with....

the 'cheap tap on the end of a cheap pipe' seems to be the norm, with the taps prone to leaking and the pipe prone to splitting or coming away from the tank....not too good...

im afraid its either 'grin and bear it', having to periodically fix issues, or try and redesign it to something more robust.

the system that DD (and we) have would be no good for the externally sited taps (as ours have inboard tanks and valves) but i would suggest fitting your own heavier duty hose and clips and binning the cheap pipe and tap....

 As said ,cheap original hoses do tend to be a problem.Convoluted ones can collect debris in them to ,resulting in unpleasent smells.A better piece of hose can be obtained at a boat/yacht chandlery,complete with stainless clips..Hope this helps ..

Thanks all for the feedback, food for thought.

Convoluted (ribbed) hoses are availably with smooth interior surfaces.....just choose the correct one!

Had a 2009 Sundance which had a rigid pipe and a tank tap you could probably retro fit one of these. The Bessacarr we replaced it with had a flexible pipe which had to be replaced twice in four years. Cak tanks sell a very robust replacement with a smooth internal bore by the metre. 

CAK Tanks supply smooth bored helicoil hose in several sizes through their online store, or they will be at the NEC Show in October.  They also supply matching taps and adapters for connecting to rigid waste systems.