Have been checking out thermopane tubs. I see that most of them really stack on the fiberglass(Arctic, Emerald, Royal) but Coleman seems to build their shell differently. Is Coleman the only thermopane that builds a shell with a layer of styrofoam?
Is the styrofoam the reason Colemans seem to be such a quiet tub?
What is the cost range per month to operate a Coleman?
There is some concern in past posts that the Galvalume frame will rust. Would like to know from Coleman owners/dealers if they have ever had any rust issues whatsoever on the frame and, if so, how can the rust/corrosion problem be corrected?