Update: Still getting small leaks so ditched the sealant idea.
Realised that I only secured the top of the host against the inlet.
Decided to remove all the glue and secure it against the bottle on the top and bottom of the hose using the clamp as a way to attach my cable ties.

Well, it worked. Probably should get better cable ties or something more proper but at least now I can drive it to a garage.