While you wait for answers, we may have found some information which could help you.
Click here for Unit Macdee Flushleaking cistern?
to fix a macdee close coupled toilet?
cistern constantly fills and runs into toilet pan?
derwent macdee metro 3-part syphon range wont flush?
I need new bellows for my macdee pneu-compact 6 litre cistern?
my toilet wont flush?