Thread Number: 36868  /  Tag: Recent Vacuum Cleaners from past 20 years
Working water lift vacuum test gauge explained.
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Post# 394286   7/3/2018 at 16:07 by vacuumdevil (Denver)        

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







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Post# 394326 , Reply# 1   7/4/2018 at 01:49 by tolivac (Greenville,NC)        

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.

Post# 394343 , Reply# 2   7/4/2018 at 10:54 by sptyks (Skowhegan, Maine)        
@vacuumdevil...

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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!

 

 

 

 


Post# 394350 , Reply# 3   7/4/2018 at 14:44 by Mike811 (Finland)        

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I leave this there. All comments are welcome :)





Post# 394352 , Reply# 4   7/4/2018 at 18:09 by lux14 (Leawood Kansas)        

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

Best!


Post# 394517 , Reply# 5   7/8/2018 at 13:40 by vacuumdevil (Denver)        

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@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.


Post# 394561 , Reply# 6   7/9/2018 at 08:38 by Mike811 (Finland)        

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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.


Post# 394699 , Reply# 7   7/11/2018 at 17:41 by vacuumdevil (Denver)        

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@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.


Post# 394713 , Reply# 8   7/11/2018 at 20:27 by Mike811 (Finland)        

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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.

Post# 394755 , Reply# 9   7/12/2018 at 10:04 by vacuumdevil (Denver)        

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Post# 395675 , Reply# 10   7/27/2018 at 19:34 by blackheart (North Dakota)        
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?

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