When the loo flushes the water wont wash/reach the front lip, leaving unsightly/unhygenic build-up in the top front of the bowl. Is there a reason why water doesnt seem to be dropping fast enough? Have an identical unit in ensuite and doesnt have this problem. Cant see any difference in setup.

Rod Potter, February 2007

Caroma DUAL FLUSH toilet makes suction noise when refilling.
DOB of toilet 1989.

max, May 2007

I have a similar problem. Found it to be inadequate fill - only about 4 litres available to flush. Simply adjust water level - easy if it's an arm type valve. If it's a Fluidmaster valve, they have a good website with instructions and diagrams.

Chester, March 2007