On 24/11/2016 15:34, Ramsman wrote:
The Limescale spray doesn't any more after only a few weeks. I've
managed to remove the spray head from the bottle, but can't see an
obvious way to disassemble it. I can't tell whether it's broken
somewhere inside or is clogged.

Any tips?

Calling customer services is the next move if I can't fix it myself.

soak it in boiling water