lots sloshing around upon shaking. To be sure I brought a new bottle today but still get the same issue. When I point the flame downwards, it starts to flare and eventually switches off. Also, contrary to what I thought I have a GoSystem (recommended on this forum) TorchShake it, can you feel anything sloshing around.
I've had it for 4 years but not used too extensively. I've also kept is safe from knocks and bumps.
Does the above indicate that it needs to be replaced?