Clayton, I have to disagree with you there. First off, if your Dual-V became louder after a period of use, it's likely because because you allowed foam to get into the motor and residue to build up on the fan, causing it to run off balance. This is user error, and not the fault of the machine!
Second, the Dual-V is made at the Hoover plant in Mexico. And FYI, Bissells are also manufactured at factories in Mexico and China, and contracted South Korean companies do some of the manufacturing. So I'm not really sure what your point was here!
The SpinScrub brushes DO NOT push dirt further down. That's complete nonsense! It's a completely different technology to a vacuum cleaner brush, which is using a sweeping action and vibration to dislodge dirt into an airstream. SpinScrub brushes are working a mixture of water and cleaning solution down into the carpet pile, where it sits for a few moments until you remove it with the reverse stroke.
'Dual-V' is more than just an appliance name; like the SpinScrub brushes, it's a specific, patented technology, whereby the nozzle is spilt into 2 sections, so airflow is optimised across the length of the nozzle - it's this intense, even suction which removes the deep-down dirt, not an aggressive brush-roll.
I'm totally, 100% happy with my Dual-V, and I entirely recommend it. It's been used for many, many hours, on all my carpets at home, and a number of my friends and relatives' houses, and still works as perfectly as it did when I first took it out of the box.
And Vax are confident enough to supply their version with a full 6 year warranty.
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