Alright... so I've got this frustration, and I'm sure I can't be the ONLY one to have thought this, although it wouldn't surprise me if I am. I've got a jacuzzi in my master bathroom which I enjoy using from time to time. However, since my crawlspace is smallish (I can't stand up fully) my water heater is only like 40 gallons or 47 gallons. I think it's standard size, but my jacuzzi is a bit bigger than most. I find that when I fill the tub up, by the time its full, most (if not all) of the hot water is gone. I've turned the heat up on the water heater thinking that if it was hotter I would use less of it, but I don't want to turn it up too high I don't think. I admittedly don't know much about water heaters, and all I know is I don't want it to break, and I don't want it to electrocute me! But one thing that's just been bugging the hell out of me for the past year is why someone doesn't make a jacuzzi pump that reheats the water? Or is there such a thing? I've looked and looked but can't find a thing. Maybe it's just not realistic. I understand the logic of having electricity near water, but surely there has to be some kind of product out there!