Managed to dismantle the CMX after a struggle with the centre cap, I found this difficult to unscrew and was worried that something unknown inside would shear off.
However upon its release it proved to have a metal tapered spike for sealing off the bottom opening which allows liquid to drop on the cleaning pad, after a decent cleaning of all parts the liquid was being dispensed.
Even with all parts re-assembled there remains a resistance to unscrewing the centre cap to allow for drip release to the pad, pardon my ignorance but what is causing the resistance to opening the centre cap, could it be that the filler cap needs to be released a little to allow air to circulate, I see a small hole underneath the filler cap.
Now I need to source where replacement corduroy pads, or similar type, can be bought, any ideas?