Ryan
As for flush, easy
U can DIY ursf
Simply lift the wc heavy cover and turn it around
U can actually ‘screw’ the ‘button’ which u press to flush the wc
By turning it clockwise, u can either lengthen or shorten the ‘protruding’ end of the button and in turn, exert a different pressure on the oral, blue shape ‘activator’ in the wc
The longer the screw, the harder the pressure on the activator, the more powerful is the flush, but it also means more water consumed
If too chim, simply dial the service centre no. haha