Welcome to the Disney Parks Moms Panel! Thank you for bringing us this great question!
Having 2 kids who love to eat Mickey Premium Ice Cream Bars in the hot Florida sun, we often end up in the laundry room cleaning up the melted ice cream for their clothes!
The washing machines at Disney’s Pop Century Resort are standard-type washing machines, so if you just have the type of detergent pods that you throw-in, then I do not see that being an issue. If you happen to forget your pods, your Walt Disney World Resort hotel has you covered as you can purchase detergent, bleach, and fabric softener at either of the 24-hour self-service laundry facilities located near Bowling Pool, Computer Pool, and Hippy Dippy Pool! Yes, you can use a credit card to pay for your laundry services, in fact, there are no longer any coin-operated laundry facilities at Disney Resort hotels.
Hope that you have a great time!
Jen