While you wait for answers, we may have found some information which could help you.
Success
Message
my toilet wont flush?
cistern constantly fills and runs into toilet pan?
Toilet seat?
I need new bellows for my macdee pneu-compact 6 litre cistern?
how do I adjust a dve 0600?
macdee dve 0600?
where can I get spares for a Derwent Macdee 9.5 inch round syphon ?
Macdee Metro 3 Part Toilet Syphon?
Derwent Macdee metro syphon repair?
leaking cistern?
Macdee cistern inlet valve?
How do we change the flush from 1/2 to a full flush?