Working water lift vacuum test gauge explained.

[vacuumdevil]

In my humble opinion Working water lift is the Most realistic way to test vacuum motors.




Say tuned for more Test videos


http://https//www.youtube.com/c/PerformanceReviews

 

[tolivac]

Not related to the vacuum test gauges-My freestanding MD Central vacuum is like yours.I am going to start using it more-My Lux Guardian Platinum was getting more attention.Figure my central unit is getting lonely.Have the MD attachment kit with mine.Use it with the Volt powernozzle-BIG difference!I have used both the Baird and Vacuum gauge during some TriStars sales when I used to sell them DTD with another guy.Have one of the sales kits-since those meters are sort of thrown around don't think you can really trust their accuracy.

 

[sptyks]

@vacuumdevil...

Your video is misleading.


 


You said that the Kirby is not very powerful. If that is true, how do you explain the fact that the Kirby G series machines are among the best Deep cleaning carpet cleaning systems there are?


 


The secret is Agitation and Airflow - NOT suction!


 


 


 


 

 

[mike811]

I leave this there. All comments are welcome

 

[lux14]

Great video Evan! Makes total sense! Thanks for sharing with us!

Best!

 

[vacuumdevil]

@sptyks I knew you would comment on this . I know you are in love with your Kirby's and there's nothing anybody could say,or show you facts that would tell you different. You are entitled to your opinion.
Nobody is attempting to mislead anybody I do not sell vacuums. I have no motivation to do so.

This is a simple way to test how powerful a motor is under working conditions.
Of course agitation & nozzle design can only be tested in real-world settings.

The point of this video is to show how flawed CFM only testing is.

 

[mike811]

Airflow
Suction
Agitation

Not in certain order, but just three most important things for great cleaning results.
And what it comes to my airflow box. It's not only airflow box. I can measure the suction also from it.
And measuring the airflow/suction from the nozzle, because it is what does the cleaning.

 

[vacuumdevil]

@mike811 my only problem with airflow boxes is it they very too much and often the shape of them can affect the airflow results. Now I have not seen yours maybe you've perfected it? But a lot of the ones here in the US are so poorly shaped and constructed that they would mess up any air flow test .

I'm definitely saying that you need air flow and suction to clean.
agitation in my humble opinion is not always necessary especially if you're doing bare floors. I have used plenty of straight suction machines that clean carpet as well as any machine with a brush roller.

 

[mike811]

I don't know about other airflow boxes, but when I made mine one thing was my main goal. It has to be 100%'airtight. Otherwise I don't use it. So I made it solid and airtight. That's not enough. Every nozzle has to make a good seal to it. If not it's useless. So everytime when I use different nozzle I have to make a perfect seal to it. A lot of trouble and a lot of time. So far from my collection biggest winners has been Miele C3 and Vorwerk Kobold VK 135. Both have very high airflow and suction. In real life they also are very capable. This is just a start to the real testing.

 

[vacuumdevil]

 

[blackheart]

Well I'm curious

So I built one. While I already had a waterlift gauge I dropped mine during a test run and it broke. I used a fender washer for the end piece it's got a 1/2 opening. I'm curious to see how these machines do at the nozzle where the specs matter more than ever. I also tried it on a Kirby Avalir's hose cause, why not?

 

[vacuumdevil]

@blackheart Good Stuff!

 

[ilikevacuuming]

Alex

I have a somewhat stupid question that I could probably figure out on my own. Does the high altitude that you’re at in Colorado affect any of the results of these working water lift tests?
Thanks for all the great videos!
Will

 

[broomvac]

Sorry if I’m late to the party. What you all have made is a homemade “orifice plate.” These devices have been used by engineers for decades to measure the flow rate of a substance. Essentially, the pressure drop across a restriction (“orifice,” which in your case is a washer) in a pipe is measured.

When properly calibrated and understood, these devices can be very accurate, more so than even the anemometers commonly used by vacuum enthusiasts.

For those of you without engineering textbooks, you can turn to Wikipedia if you would like to learn a bit of the theory behind measuring the mass or volumetric flow rate of air through the device.

Thanks for sharing!

https://en.m.wikipedia.org/wiki/Orifice_plate

 

[vacuumdevil]

@ilikevacuuming

That's an excellent question yes it does.

I tried to mention it in my videos but I often forget.
You'll also hear me sound out of breath sometimes, because there's not much oxygen up here.

From my understanding my results will very 10% to 20% then those done at sea level.

It also affects naturally aspirated cars quite a bit!

 

[ilikevacuuming]

@vacuumdevil
Thanks for the response! The numbers in your videos always seemed a bit low and I always wondered why. I’ve been to Colorado, and I agree, you guys are definitely lacking in oxygen!

 

[vacfan1982]

I am glad that Alex has been able to show in his video that the Kirby is not as good a cleaner as some seem to think it is.
It's a well built vacuum but there are better quieter lighter and more convenient cleaners available.

 

[rivstg1]

vacfan1982

that video had loads of questionable 'results'.  If one were to read some of the comments from that video questioning his methodology , a less certain opinion would arrive(very pertinent points were made).  I, for one, have many Kirbys ( along with other brands too), and NONE of them leave behind what his Kirby left behind.  I do like many of his videos though.  The precious Miele's that are so adorned in videos weigh roughly the same as the Kirby( some more, some 1-3 lbs less than a Kirby).  Quieter? yep, I'd agree with you , there are quieter ones ( Miele's for one), better? hmmm no so sure of that, if your goal is remove debris/dust from your home, those Kirby's flow about the highest airflow around  and as we all know, airflow is key to removing dirt, etc.  More convenient ? yeah, I agree with ya, its not the most at that, perhaps the most versatile though ( much more versatile than both my Miele's, Orek, FQ, Rainbow or Royal's).


 


just thoughts, no flames intended 

 

[rivstg1]

vacfan1982

I haven't seen a video that he accurately demonstrates that.  I've seen this one though, 


 


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<div style="margin-top: 63px;">
<p style="margin: 0px; padding: 0px; border: 0px;">that video had loads of questionable 'results'.  If one were to read some of the comments from that video questioning his methodology , a less certain opinion would arrive(very pertinent points were made).  I, for one, have many Kirbys ( along with other brands too), and NONE of them leave behind what his Kirby left behind.  I do like many of his videos though.  The precious Miele's that are so adorned in videos weigh roughly the same as the Kirby( some more, some 1-3 lbs less than a Kirby).  Quieter? yep, I'd agree with you , there are quieter ones ( Miele's for one), better? hmmm no so sure of that, if your goal is remove debris/dust from your home, those Kirby's flow about the highest airflow around  and as we all know, airflow is key to removing dirt, etc.  More convenient ? yeah, I agree with ya, its not the most at that, perhaps the most versatile though ( much more versatile than both my Miele's, Orek, FQ, Rainbow or Royal's).</p>
<p style="margin: 0px; padding: 0px; border: 0px;"> </p>
<p style="margin: 0px; padding: 0px; border: 0px;">just thoughts, no flames intended </p>
</div>