Stretch the rubber seal over the centre hub. Replace seal the same way. Had me stumped for ages.
Vedderist
January 2009
The rubber seal on the tubelike release i cannot undo to replace, do i have t replace the whole the whole unit or where am i going wrong.
norm park
December 2008
I believe this website will answer your question: http://www.sustainablesolutions.com/video.php
Click on the Caroma Dual Flush Valve Maintenance near the bottom of the page. I have just purchased a Caroma and believe this is the answer to my leakage from tank to bowl problem. I will be calling them for a replacement of this rubber gasket.