Website below, pictures not updated but the construction shows it's going to (hopefully) look like a luxurious bath house. 150 baht fee with free booz and food.
http://www.thailandout.com/farose2/index.php
Located in Soi Ramkhamhaeng 21. I wonder if you can go there by boat and how far is it from Ramkhamhaeng University. This place may attract lots of Ramkhamhaeng Uni students.