I've had this problem several times, that the flush mechanism doesn't always reseat properly, and water continues flowing into the pan. I've found I can usually fix this by putting a small lead weight on the closing plate, but this one still has a constant slight weep. OK, it's afew years old, but this should be a fix-and-forget component - especially since the whole point of the dual flush is to save water. I recall that the old-fashioned siphons were called, for good reason, Water Waste Preventers! Leaving the equivalent of a tap running all night soon outweighs a month's worth of dual flushes.
Is there a brand that will be reliable, that I can fit ang forget?
Is there a brand that will be reliable, that I can fit ang forget?