I don' know if they are all or not but I know mine the drain system is such that it cant. Like the back is open for the water to drain out of instead of like a tank with a drain hole. There's not a button to fill or drain tank either. Friend that came up gave me some good ideas and explained some of the power settings that I am going to try out. I was doing a few things backwards. Hopefully I can get it all figured out. He explained the De ionizing system and stuff also. If you can send me a PM with an email and a physical address I'll send you a copy of this class workbook if you want. it has some things in it that are explained better than in the manual.