I discovered how difficult it is to obtain new cistern lids as 'replacements'. Bunnings and some bathware stores say "You gotta replace the whole cistern and/or the toilet".
Do you know of any places, other than eBay, where one could order cistern lids to fit 'slimline' cisterns of Royal Doulton toilets? It is simply that we want to fit dual-flush outlet values to replace single-flush units to prepare our elderly relative's house for rentals (not auction sale, after all).
The existing cistern lids have 25mm diameter holes and we want 45-50mm holes for dual-flush plunger buttons. We find Fix-A-Loo flush units (designed for 16-50mm holes) not so sturdy. The chrome-plated plastic plunger (2 buttons) are easy to snap off after only 6 months or so, though the internal units still work. We have young kids, so these buttons aren't that robust for family use.
Alternatively, is there a more sturdier after-market "dual flush outlet values" whose plunger buttons will fit within our existing lids' 25mm diameter holes? Where the buttons will not easily break off during a few years' ordinary usage?