3" Vac Hose?

The answer is no, Dennis. The volume of air that moves with most porty's is not enough to keep the speed high enough to keep water and soil suspended.


Now for your main question. Never. 3" hose has a flow capacity of over 1000 cfm. Unfortunatly the wand even with the glide on can not do more than 200 cfm. Total waste.

The 2.5" hose is not needed either by the way by the great majority off cleaners for the same reason.700 cfm of flow capacity is not going to do much good is the wand is limited to 200 cfms. The standard 2" hose with the 500 cfm capacity does just fine. Why is it being sold. A sucker is born every minute, so why should not someone profit from it?

Does anyone wonder if a 3" hose would be hard to handle and heavy. Can you imagine the CFM you would have to have to generate effective vacuum. Your talking Hibon adn I-R blowers now.

so then is 1.25 better than 1.5

Superglide Ken wrote: The answer is no, Dennis. The volume of air that moves with most porty's is not enough to keep the speed high enough to keep water and soil suspended. Now for your main question. Never. 3" hose has a flow capacity of over 1000 cfm. Unfortunatly the wand even with the glide on can not do more than 200 cfm. Total waste. The 2.5" hose is not needed either by the way by the great majority off cleaners for the same reason.700 cfm of flow capacity is not going to do much good is the wand is limited to 200 cfms. The standard 2" hose with the 500 cfm capacity does just fine. Why is it being sold. A sucker is born every minute, so why should not someone profit from it?

    

The standard 2" hose with the 500 cfm capacity does just fine. Why is it being sold. A sucker is born every minute, so why should not someone profit from it?


I disagree on that one. The bigger the hose, the more airflow you will get to the wand. I haven't tried 2.5 yet, but I plan to in the spring. Just the first 50' from the truck.


See what I mean?What cleaners do not understand is that if the machine that one is using is a Cleanco with the standard 45 Roots blower in it, turning at the standard 2400 rpms that Cleanco's turn them, then you only produce 240 CFMs at the blower anyway.YOU CANNOT GENERATE MORE CFM BY STICKING A BIGGER HOSE ON IT!You also do not have much drag from frictional losses if you are moving less than 50% of the flow that the hose can handle under maximum flow conditions. 50% of 500 cfms is 250 cfm. Almost nobody in the industry has this much cfm of airflow going through their vacuum hose while wanding carpets, except some of the large blowered machines that are using 14"wide, 2" tubed wands with our Superglides on them.Then they might be at 300 cfms or so.Foor everyone else, forgetaboutit!

Some suckers(carpet cleaners) think that it makes sense to have a channel(hose)that flows 700 cfms to a hole in the dyke(wand's WCI)that only flows 200 cfms.That means you could have a hose that can flow 2000 cfm(5" hose), and it STILL can NOT move more than the 200 cfm that the wand will let thru it when it is working on the carpet. It never occurs to them that a chain can not be stronger than it's weakest link.

There will always be a salesman ready to sell these simple minded suckers something they don't need. That is the basis of the free enterprise system!
    
    
    

Edited by Superglide Ken - 13/December/2006 at 3:17pm

Kenny is 100% right on the money..............he knows his stuff. Try connecting a 5 or 6 inch kitchen hood ventilation pipe on your truckmount or porty...............and see what happens.................you need one hell of a blower to handle 3" or more. Maybe my 6.9 Roots can do it but only on a single wand operation.

cmaster wrote: We'll see after I try it. Theory and reality are 2 different worlds

If theory has been proven to be fact, as this has, it is no longer just theory. it IS REALITY.Sceptics that don't want to face reality, always take the position that the topic in discussion is in doubt, so as to give the appearence that they just might know what they are talking about, which sadly is usually not the case either.
    

dennis_is_ok wrote: so then is 1" hose better??? how about 0.5" or 0.75" really then what is the ultimate hose? Superglide Ken wrote: For machines that only have vacs in series and do not need more than 25 ft of hose, 1.25" hose is better. The simple fact is most of these machines do not generate more than 30 cfm when the wand is one the floor. 1.25" hose can flow near 200 cfms. But since 1.5" hose costs less per foot, most manufacturers give you that one anyway.

Dennis: The ultimate hose is the one that best suits what you want to use it for. For machines that operate with less than 50cfms in use conditions and need to go no more than 25 ft, that hose size is 1.25". Manufacturers of the built in vacuums know this , and that is why they equip their systems with this diameter of hose. They have done all the tests. If their equipment worked noticeably better with 1.5" hose compared to the 1.25" hose, that is what they would use.

Frictional lose only becomes noticeable when hose length goes beyond 25 ft or more. That is why the Ninja extractors get 1.5" hose. Manufacturers know that some cleaners will run 50 ft of hose with it. The 1.5" is superior to the 1.25" hose at that length, because with 2 vac motors in series, the power is there to go out that far. But dont ever think that the 30 to 40 cfms that a machine like that uses when working is enough to switch to 2" hose without droping performance. Air only moves thru 2" hose at 1/2 the speed of 1.5" hose, so unless you have a lot of it, you will not benefit from its use.How much airflow do you need to use 2" hose for 50 ft or more? My tests indicate that 60 cfm or more is enough to start to see an improvement. You will never see that from a Ninja unless it has been heavily modified into a 3 or 4 vac machine.