I just installed the kinetic single flush outlet valve, after cutting the tube and grey rod like thing to make it fit in the cistern, I followed the instructions to put the full flush level (grey lever) at the lowest number for maximum amount of water, and same with the half flush lever, but hardly any water goes into the toilet bowl. I have to hold the button down to get the toilet bowl to fill with enough water to get rid of the crap..the cistern is full of water so this is not why it’s not flushing properly.
can someone help me with how to adjust in order to get more water when flushing the toilet