adam ragnoli
Hi jeremy, Good to always check the washer on your siphon but if water is still trickling into the pan then i suggest the water inlet valve needs changing. This does the job of an old 'ballcock' and if its not shutting off completely it will continue to fill the cistern, gradually raising water level above that of the internal overflow level. I would always recommend a plumber for this work rather than attempting yourself. I hope this helps solve your issue.
