While you wait for answers, we may have found some information which could help you.
Click here for Macdee Dve 0600leaking cistern?
where can I get spares for a Derwent Macdee 9.5 inch round syphon ?
Macdee cistern inlet valve?
I need new bellows for my macdee pneu-compact 6 litre cistern?
Macdee Metro 3 Part Toilet Syphon?
my toilet wont flush?