Me being feeble! Other half got it off with no trouble so that bit sorted. Not grungy though so still not sure why it’s not cleaning properly. If I have to re-wash any more cups ……………
Yes Seamy but it’s the lock clamp that I can’t seem to shift. It’s the plastic nib to the left of the clamp that’s preventing the clamp from sliding off the valve and there’s no room to lift it clear.