I nominate the Hoover Dial A Matic Power Drive. My mother bought one in 1972, and it was the WORST vacuum ive ever used. Before or since.
The suction was PITYFUL on the one side of the brush roll that HAS suction,,,the other side, NO suction whatsoever. So, you get NO vacuum at the baseboard on the one side,,and barely any on the other.
The tool suction, even on HIGH was again pityful,,would barely even pick up a feather.
The bag was very hard to change,,you ended up with dirt and dust falling out everywhere, unless you layed the entire machine down on its front, just to change the bag(who is going to do that?)and the "filtration" was VERY POOR. That machine spewed dust out of the exhaust like a freight train.
The entire machine was clunky, clumsy to use, and awkward,,,and also VERY heavy to lift.
Try cleaning a long, large carpeted stairway with one sometime. ROTSA RUCK!
Yes, the "Power Drive" did help in pushing pulling the beast, BUT, it was jerky, and awkward.
Very poor grooming of the carpet,,the brush roll did NOT deep clean, or DIG into the carpet at all. The machine was also noisy. There was no way to adjsut the brush roll. It was supposed to be "Automatically" adjusted to your carpet. HA!
Hope you dont have DEEP SHAG,,or DEEP PILE.
Ive always been under the impression that the regular, NON Power Drive Dial A Matic Hoovers were slightly better.
The WORST part about those vacs is only having suction on ONE side of the brush roll. And, pityful suction at that.
IF you wanna kill your back,, push and blow the dirt around your house,without actually picking UP any dirt or dust,,,get a Dial A Matic!
Lilly Munster would be so pleased!