OK. My husband is out of town. These things always happen when he is gone! I have two bathrooms in my home. One at one end of the house and the other at the opposite end (its a mobile home). Right next to the master bedroom and bathroom is the washer and dryer. Starting yesterday when the washer drains the water out some water backs up into the master bathroom toilet, sink and bathtub. Nothing is overflowing and the water looks bluish in the tub (laundry det. Maybe?). I don't know anything at all about plumbing but I thought if I could get some help here I can tell my husband when he calls tonight and maybe that will help. The kitchen sink (on the other side of the laundry room) is normal and the other bathroom has no back up issues either. Its just my master bathroom. Any ideas?? Thank you for any help at all!