In my home ice box, the "defrost water" ends up in an removable evaporation
pan. It doesn't have to be emptied but it does accumulate some slime and I
like to wash it several times a years.

But the ice box in a rental I can "cleaning up" doesn't seem to have a
removable pan.

Is it a case of my not looking hard enough or do some makers feel that it
doesn't need to be cleaned?

EMWTK