My neighbors put little green bags of dogshit outside their doors. They pick it up and carry it up the stairs with them. They carry the shit in their hands further to put it outside their doors than they would carry it to put it in the dumpster or receptacle. And when they carry it to their door they don't flush it. They keep it so they can carry it away in the morning. Maybe they carry it to work with them. Or maybe they launder it in public laundries. Who knows?

All you can do is run the machine with hot water and bleach and cheap detergent before you use it. Don't use the dryer. Check freecycle for washer and dryer. Check rental prices. Make an arrangement to use a friends machines. You buy her brand of detergent and leave it with her. Be good company.

Buy a small washboard at the hardware store and do your underwear and shirts in the sink. Have less laundry. Buy fleece. It air dries fast.
Look for a clean laundromat.


You won't teach your neighbors. Management won't teach them either. One of the requirements for being an apartment manager is that you have to be really, really stupid. Not just low IQ. Brain damaged too. You have to be actively dumb, not passively dumb.