I have acquired a cimbali m29 selectron machine, i am not ready to install it and use it yet but i can hear water inside and i am thinking i need to drain/empty the tank/boiler. I cant find anything online which helps with this. The closest i have got is a cimbali m38 machine. Alternatively, can i have it serviced now and not use it or is it better to get it serviced once it is installed and set up to use. Any help with this would be greatly appreciated .