I have xl capacity also, and I wash my quilts without problems; have done K. fluffy comforters. I do hang them outside to dry tho. I have a quite heavy K quilt that I'm getting worried about--probably go to laundrymat or send to laundry....heck, maybe I'll give that one a go. So far, Q. is the largest I've done, other than the comforters. Just have to fill to max, work it all down into water and ''let 'er go". I spin twice. I am not afraid.