Bissell Proheat 2x Upright. The cleaning solution may be left in the carpet cleaner during storage. Some models of the Bissell ProHeat 2X upright series also have Microban protection.
www.amazon.com Using the power of heat, brushes, and cleaning formula, this upright home-cleaning system removes deep-down dirt for a maximum clean. The unit's built-in heater heats hot tap water up to 25 degrees hotter for maximum results, plus it offers a no-heat option for cleaning delicate wool or oriental rugs. Choose between light clean, normal, heavy traffic, and rinse settings; the cleaner will adjust the right amount of cleaning solution to mix with the heated water. I think that this Bissell will go a long way towards keeping your carpets looking nice and potentially extending the life of your flooring. I recommend it, despite a few minor issues. www.amazon.com