How do I change a Ballcock Washer in a Caroma Cistern later than 2000?
You can try to take washer out again and just put it in the reverse way (may have a bit of foreign matter dirt etc behind the washer), or go down to your nearest plumbing store and buy a Caroma Washer set. You could also call Caroma Company for advice. If this doesn’t help I am afraid you’ll have to call in the Plumber.