Does any know where the waste water diverter valve is located . Ie to switch from the tank to the Sea cock. My manual is not in English
Can't help you with that particular boat, but are you sure that there is a diverter, to start with? In many modern boats, toilet discharge can only be sent to the black tank, with no straight out option.
Find the tank and follow the hoses. Your boat is only 34' so shouldn't be too difficult or far from the tank. A lot of boats don't have a diverter valve (Y valve). A lot of times there are simply seperate hoses for going from the tank to deck fitting and another from the tank to macerator pump and seacock.