Running a washing machine from a generator?

leave the door open and fill to a level below the aperture. It is doubtful whether auto fill would come past this level anyway. You could even use a hose rather than jugs; that would be quicker.
You could also fill from the soap dispenser.

Does this just need doing the once on the initial fill, or during spin cycles etc. Also if I fill through the door will the soap in the dispensor still get used. Apologies for the simple/stupid questions...

If it is, as I suppose, an experiment to see if it works with pre-heated water, then does it matter, for test purposes, about the soap? In any case you could use one of those soap bubble things you put into the drum instead.

yebut nobut yebut...the Flexi hoses are a hand tightened fitting, it's hardly "plumbing"! Washing machines pull out and push in easy enough. 10 or 15 minutes of a job, bet you've spent longer typing and reading this thread.
Useless twat.😉

is it a built in cupboard one then? Posh twat! Serves you right.

Where does it get it's water from now, aren't there 2 Flexi feed pipes into your cold and hot water? With those little taps at the end of the solid pipework? Washing machines normally have Flexi feed pipes to the solid copper/plastic system. Is it only cold water feed? Where will you get the hot water from? If you do have H n C pipework and need to T in, they do a washer feed fitting that can be fitted to a "live" pipe, no soldering, cutting etc.
Otherwise hot water down the soap 'ole. Cold feed then just does the rinse.

the self cutting fittings need very little room, a clamp fits around the pipe, the tap portion screws into clamp and cuts it's own hole in the pipe, with no or minimal leakage. Needs hardly any room to do it.
There's also a Y connector for the hoses if it's any use, might help with andrew's idea.