Vacuum Pick Up Tests
Guys,
In my days in Teamsters Local 25 in Boston and working for lux for a decade here is what I learned. A good vacuum used often cleans better than a great vacuum used only occasionally. A degree in mathematics and physics is probably the most fun I would ever have with my clothes on lol. Still enjoy your videos and those from Alex.
So we know there is a margin of error in sampling. I am not sure why one would test vacuum pick up on carpet (apartment style) that sheds worse than an Old English Sheep dog? Probably some new Shaw carpet tiles vacuumed prior to testing with a clean bag and a good vacuum like a Marin/236 would be a good starting point. Some before and after vacuum weighing and a measured amount of sand distributed evenly over the carpet tiles with a drop spreader would guarantee even material distribution. Before sand and after sand pickup weighing of carpet tiles less error gives the soil removal percentage. Before and after weighing of equipment should fall in the generally accepted range of mid eighties say for the SEB 236 for instance after the error factor is figured in correct? I would not expect to see 100% or even 90% soil removal for that matter. I would expect better performance on Shaw tiles vs Sheepdog apartment carpet though.
What do you guys think of the XRF method of using X ray to measure soil removal in carpet as does CRI in rating vacuum performance?
We know that good performing nozzles (Sebo-Windsor, Rainbow, Miele/Wessel, Lindhaus, and Lux/Tristar with 48011 green HPO and Kirby) run around 75-85% soil removal in best case, real world testing? Interesting about the Oreck XL-21 and stiff bristles. Lux used an electron microscope to show the degradation of opaque carpet fibers as a result of power nozzle roller brushes that are too stiff. There is a lot of Karastan carpeting in multi million dollar homes in Boston vacuumed with Oreck. Buy Karastan by the yard and throw it away by the pound I guess. The damage to the carpet fiber ends can be significant depending on which roller your machine has.
As far as soil pick up if I have not vacuumed for a while my go to is the Avalir. In the same number of uses in the house it just picks up more dirt than my other machines. At the same it weighs one third of Miss Saigon who is probably in line to become Mrs. Funeral Director so not appropriate for every user I guess. Never forget the fishing boats docking in Gloucester Massachusetts and the deck hand wails a Kirby on a rope into the harbor use as an anchor. Great performance but the user experience leaves a bit to be desired.
Brian
