[necovek]

The problem (scratch that, "the most interesting challenge") with that is that a washer needs a water supply line, water release outlet (if not for chemicals, might not be the issue on a farm) and electricity (perhaps a simple problem to get power connections to it through the rail like trains).

[bombcar]

I’m envisioning docking stations - power is relatively easy with pantographs and similar things, water could be gravity fed into holding tanks …

[madaxe_again]

Nah, you just put a 5-10kwh battery on there, along with a small water tank and pump - a load of washing (in Europe) only uses 50L and about 2kwh tops - up to 5 with drying. The rest of the battery powers the drive train for the vehicle. Then you just have a dock for charging and water replenishment. We only use zero phosphate eco detergent, so waste can be dumped wherever. Maybe position it to water some plants when it drains.

You know, my whole life is madcap projects (today is running half a km of fibre down the inside of a live water main) so I’ll update you when I have a mobile laundromat.

[necovek]

Sounds cheaper to just get multiple washing machines instead :D