Hello! Why is my mixet shower's temp control reversed? Turning it to the right give me hot water and turning it to the left gives me cold water. Does this mean the mixet cartridge was incorrecly installed? I checked for the red mark of the cartridge and it is facing upwards. What I am not sure of though is if that is really how it was inserted in when it was installed. If I twist the cartrigde around with the red mark facing down, then I get the correct temp. If the cartridge is indeed incorrectly installed, could this be the reason why I am also not having enough water pressure on my shower head?