Dear all
I have seen some typical arrangement like water tank line sometime bellow & some time flexible hose is used. If flexible hose is used my stress calculation become easy , I can put anchor before hose & that become my stress boundary limit. Whereas if tied bellow is used it sometime create problem since it has no axial flexibility.
My question is what is the limitation of flexible hose, I mean when I can not use it, say if I prefer to use hose in lieu of bellow.

Any suggestion please