WOW! Looks like you have multiple connections for your toys. Would you tell me, please, what is the fitting in the drain pipe? In the first picture the drain behind your machine looks the same as the unused connections next to your machines. Is that a water meter on the supply pipe? Do you remove the machines' electrical plugs from the outlets when the machines are not in use? I ask because, in my ignorance of plumbing and electrical connections outside of the US, I do not see the male plug from the machines' cords connected to the female outlets on the wall.
I love my W1918 and W1986.
Thanks for sharing. Have fun.