HydroSteam is Bissell's name for combining hot water and steam with a rotating wash roller, and the 35151 uses it to vacuum, wash and steam in one pass. The maker says the combination cleans 20 percent more strongly than before, a comparison against its own earlier model that is better read as incremental than as dramatic.
The dual-tank layout is the practical heart of the machine. Clean solution goes onto the roller, and dirty water is drawn into a separate tank, so the roller keeps meeting fresh liquid instead of recycled grey water. A tangle-free brushroll resists hair wrap, which is the usual failure of vacuum-mop hybrids in pet homes. Against the Deluxe 3515G it is the more approachable model in price position.
Rinse both tanks after every use and leave them open to dry. Cut stray threads from the brushroll and clear the hose channel of lint. Use only the cleaning formula the maker lists, since the wrong product can foam into the recovery path.
What works
- Vacuums, washes and steams in one pass
- Separate clean and dirty tanks
- Tangle-free brushroll handles pet hair
- Corded power with no battery limit
Watch out for
- Upper-end price position
- Two tanks and a roller to rinse after every use
Spec sheet
- Function
- Vacuums, washes and steams
- Tanks
- Separate clean and dirty
- Brushroll
- Tangle-free
- Power
- Corded
- Price position
- Upper end







