Convoluted grey water waste hose

My Swift Sundance has a 1m length of convoluted hose for the emptying of the grey water tank. The hose terminates in a plastic tap which is clipped up under the MH when not required. Guess what! when travelling this weekend the hose was dangling and the hose has split.

I can get hold of replacement pipe easily enough but does anybody know how the hose is fixed at the tank end as it is all tucked away and covered in lagging

Option B. Has anybody found a better solution? Maybe a fixed tap to which a length of waste hose can be attached to when required?

Thanks all, Kevin