i finally ordered an ro/di yesterday from what i read its what i need to fix my cyno prob.Its one of ebay i don't know if they are any good but that was all i had the cash for right now. It should be here monday i hope. Its the one they have on there for 59.99 4 stage anyone have one how are they. and how are they to hook up? I'm going to hook it up to the back of my washer and run the water into 33 gal tubs for now.