Carpet and Floor Cleaning Industry Chat Forum : cfm and water lift https://www.kleenkuip.com/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 30 Apr 2026 13:07:24 +0000 Sat, 21 Apr 2012 17:09:05 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.06 360 https://www.kleenkuip.com/forum/RSS_post_feed.asp?TID=4724 <![CDATA[Carpet and Floor Cleaning Industry Chat Forum]]> https://www.kleenkuip.com/forum/forum_images/web_wiz_forums.png https://www.kleenkuip.com/forum/ <![CDATA[cfm and water lift : FriendlyHammer you need to change...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=165368&title=cfm-and-water-lift#165368 Author: sfath1975
Subject: 4724
Posted: 21/April/2012 at 5:09pm

FriendlyHammer you need to change your name or chill out. This site is ment to be helpful. Saying someone is smoking crack just say your point and prove them wrong.
Please let me see if I am reading your replies correct. Are you saying CFM is more important than Lift? If so 99.99% of the articles I read it states you would want better lift then CFM since lift actually will suck more water out of the carpet where CFM is air flow. There is many store brands that the lift is just as good as the professional truck mounts. Like the Hoover MaxExtract Dual V Carpet Cleaner, Garnet-F7411900. The link is below.

http://www.best-carpetcleaners.org/hoover-maxextract-dual-v-carpet-cleaner-garnet-f7411900/

CFM is the amount of air being moved, or rather, the amount of "fluid mixture" (in our case, recovered solution and airflow, combined).

Lift is the force available to move it.

It really is very much like a mirror image of pressure and GPM.

Pressure is the force that's moving the fluid, and GPM is the amount being moved.
Again unless I read it wrong lift is more important if you want all the water out off your carpet.]]> Sat, 21 Apr 2012 17:09:05 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=165368&title=cfm-and-water-lift#165368 <![CDATA[cfm and water lift : ]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=165367&title=cfm-and-water-lift#165367 Author: sfath1975
Subject: 4724
Posted: 21/April/2012 at 4:47pm

Tongue]]> Sat, 21 Apr 2012 16:47:02 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=165367&title=cfm-and-water-lift#165367 <![CDATA[cfm and water lift : Johnsmith808 wrote:All I...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=140084&title=cfm-and-water-lift#140084 Author: FriendlyHammer
Subject: 4724
Posted: 24/February/2008 at 9:30pm

Originally posted by Johnsmith808 Johnsmith808 wrote:

All I can say is that the vacs arescreaming now instead of sufficating in each other.  It doesn'teven sound like the same machine.  The vac power seemssignificantly better than before.


Yep, that screaming sound indicates that you're actually getting all the waterlift you paid for. The tank is actually empty of air for the first time. Keep experimenting and let me know what you learn.
]]> Sun, 24 Feb 2008 21:30:50 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=140084&title=cfm-and-water-lift#140084 <![CDATA[cfm and water lift : All I can talk about is my personal...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139902&title=cfm-and-water-lift#139902 Author: Johnsmith808
Subject: 4724
Posted: 23/February/2008 at 5:10am

All I can talk about is my personal experience.

I have a Diamonback with dual 3 stage-vacs.  The came in a serieswith a 1.5" port.  I've used this machine like this for 5 years orso. 

After getting advice from Friendly, I decided to switch them over toparallel.  Not only that, I opened up the 1.5" to a full 2", andput a cool cuff male starter cuff in the hole instead of a 2" barb,which actually isn't even 2".  All I can say is that the vacs arescreaming now instead of sufficating in each other.  It doesn'teven sound like the same machine.  The vac power seemssignificantly better than before. 

I can switch it back to series pretty easily, but I don't think I ever will.

I though about adding a 3rd 3 stager.  Steambrite sells a vacuumbooster than takes the place of your 6" recovery tank lid.  Theyalso sell a dryer plug adapter that will allow you to plug in up to4-15amp plugs.  I have decided not to do this at the moment,mainly because I intend on pursuing more commercial accounts, whichwould render that dryer adapter useless.  It may be a good optionto have that booster, just in case one of your 3 stagers gives out at ajob.

By the way, if you are not running one of your vacs configured inparallel, I think you need to cover the exhaust hole of the vac not inuse, otherwise air will be pulling through that vac.




]]> Sat, 23 Feb 2008 05:10:37 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139902&title=cfm-and-water-lift#139902 <![CDATA[cfm and water lift : baires wrote:Ok, now we have...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139437&title=cfm-and-water-lift#139437 Author: FriendlyHammer
Subject: 4724
Posted: 18/February/2008 at 9:21pm

Originally posted by baires baires wrote:

Ok, now we have a better idea about the cfm and water lift. So the question is what are the numbers that we need, to keep the balance betwen boths if you are planning to run a porty with 75 ft of 1 1/2" recovery hose to have the best performance posibble.
 
Ideally, you want to increase both waterlift and cfm in that scenerio. However, boosters do one or the other. Your hose diameter is fine, but if you go up to 300 or more cfm, a 2" will start to make a difference, especially over the length closest to the machine.  The rest of the answer depends upon the strength of the vacuums in your extractor.
 
I also recommend modifying machines so that they can run both series and parallel, as needed.  Series, for example, is a lot more usefull in flood cleanup.


Edited by FriendlyHammer - 18/February/2008 at 9:25pm]]> Mon, 18 Feb 2008 21:21:06 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139437&title=cfm-and-water-lift#139437 <![CDATA[cfm and water lift : My first 3 portables were in series.....]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139435&title=cfm-and-water-lift#139435 Author: John L
Subject: 4724
Posted: 18/February/2008 at 9:08pm

My first 3 portables were in series.. The last one was in parallel.. No matter which one you run i would still keep your hose runs as short as possible..
 
This leaving it in the Van is rediculous.. Unless you have a booster in line..
 
Longer hose runs means you have to do more dry stokes.. slower dry strokes.. Farther to haul your water and dump it.. This takes up alot of time..
 
And for crying out loud DON'T leave it in the van when it is very cold out.. You will not like all your window froze up on the inside from the exhaust moisture.. Been there done that..Ahhhh!!
 
]]> Mon, 18 Feb 2008 21:08:45 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139435&title=cfm-and-water-lift#139435 <![CDATA[cfm and water lift : Ok, now we have a better idea...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139428&title=cfm-and-water-lift#139428 Author: baires
Subject: 4724
Posted: 18/February/2008 at 8:05pm

Ok, now we have a better idea about the cfm and water lift. So the question is what are the numbers that we need, to keep the balance betwen boths if you are planning to run a porty with 75 ft of 1 1/2" recovery hose to have the best performance posibble. ]]> Mon, 18 Feb 2008 20:05:31 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139428&title=cfm-and-water-lift#139428 <![CDATA[cfm and water lift : Kenny is smoking crack again....]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139424&title=cfm-and-water-lift#139424 Author: FriendlyHammer
Subject: 4724
Posted: 18/February/2008 at 7:50pm

Kenny is smoking crack again. In a system that has 200 cfm, 30 cfm is only 15%. The waterlift is barely affected. In a series, the max cfm is 100 with no load. If you have 50 cfm leaking into the system, you've reduced your waterlift by about 50%. Hence the confusion on Kenny's part.
 
I have 3 of 13 machines that can be quickly confingured to be in parallel or series. I have yet to find a guy that wants to use their machine in anything but parallel. I leave that decision up to them. 
 
If they were using weaker motors, the situation might be different.


Edited by FriendlyHammer - 18/February/2008 at 7:51pm]]> Mon, 18 Feb 2008 19:50:14 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139424&title=cfm-and-water-lift#139424 <![CDATA[cfm and water lift : Hmmmmmm... Thats Y i bought a...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139412&title=cfm-and-water-lift#139412 Author: John L
Subject: 4724
Posted: 18/February/2008 at 5:49pm

Hmmmmmm... Thats Y i bought a TM...Nah,%20nah]]> Mon, 18 Feb 2008 17:49:35 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139412&title=cfm-and-water-lift#139412 <![CDATA[cfm and water lift : Parallel is NOT always the way...]]> https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139390&title=cfm-and-water-lift#139390 Author: Superglide Ken
Subject: 4724
Posted: 18/February/2008 at 4:42pm

Parallel is NOT always the way to go. The best way to measure vac motors is UNDER load, not NO Load conditions. You don't clean that way. you clean with the equivalent of a 3/4" opening. That produces approx a lift of 70"WL and 30 cfm from a single 3 stage vac motor with 25 ft of hose connected operating thru a wand cleaning on the carpet. If you were to run 2 of those vacs in parallel, you would NOT double your vacuums under those operating parameters. Your lift would only rise to 80"WL but your cfm would still be only about 40. Why? Because the resistance at the wand/carpet interface is so strong that without an increase in lift, not much additional air can make it thru there.

If instead the 2 vacuums are in series, the lift will rise to 130"WL, and CFM rises to 50 cfms. That is because the air pressure differential between the air outside the wand(atmospheric)and inside the wand is now greater, causing more air to enter the wand. The resistance at the WCI is the same, but the ability to overcome it has been increased.

So now you know why the Ninja is hooked up in series, not parallel. It works better. Century did extensive testing on both configurations before deciding and PROVING that series works best.]]> Mon, 18 Feb 2008 16:42:43 +0000 https://www.kleenkuip.com/forum/forum_posts.asp?TID=4724&PID=139390&title=cfm-and-water-lift#139390