I am looking at a used hot tub and the owner gave me Rio Grande as the model number. I have done numerous web searches and have an e-mail into Leisure Spas but I cannot find out any info on this unit. The owner sent me a video of the unit running and it looks to be in great shape. I wanted to find an owners manual to confirm the age and specifications. Any ideas on what else Leisure Spas may have called this model?

*Update* I did find out that this model also goes by the Model #361819BG or Genuis G-2.5. Does anyone have any info on this such as number of jets, pumps, reliablility, etc?
Thanks
Dan