We may have found other answers which could help you.
Click here for Buy Push Toilettwyfords close coupled toilet 40 years old?
How can I fit a new siphon unit in my twyford dual flush toilet?
i dont have a ballcock in the cistern, how do i fix the overflow? ?
Toilet not flushing properly-low pressure?
removing lid of a twyford dual flush cistern?
how do I cange a twyfords toilet seat with concealed fixings?