![]() Now if your pump has no pressure but only flow your cleaning is also limited. Pressure like water lift is important, but if you have an extreme psi and no flow (cfm) you wont clean anything. To try and answer your question about cfm and suction (water lift) here's my thoughts. The longer the hose run, multiple wands, the more power is needed. How much power do you need to clean a carpet. I've often have ask myself the question when is enough, enough. (some are very expensive, but the guys who buy them feel it's a good investment, and reading their comments we can see their point of view) Many guys started out with a porty, little or no debt and built their business and can now afford a TM. A porty is some what slower, thus a cost. A good operator can get the carpets clean using a TM or a porty. If you are only moving the wand over a certain section of a carpet for a few seconds, the airflow coming thru the wand for such a short time cannot do anything to dry the carpet, right? The only thing to do is to remove more water from the carpet while cleaning it, hence, LIFT seems to be most important, with possibly the addition of an air mover after cleaning.Īgain, I am new, and could possibly have my facts completely messed up, or am I on the right track?Ĭan anybody make sense of this, or is this just one of the "battles" within the industry that I should just get used to? Or did I stumble across an industry filled with the mindset that bigger is better? Airflow moving through a wand can't possibly dry a carpet faster, can it?. That is why some people use an air mover or fan on the carpet after cleaning, because it helps dry the carpet. From what I have found, I don't think their point is valid. Some companies are trying to sell me that a strong CFM would help dry the carpet. So, the more LIFT you have, whether from a truckmount or portable, the more dirty water you pull out of the carpet which produces cleaner results. ![]() Hence, LIFT pulls the dirty water out of carpets, not CFM. When air is removed from the vacuum hose, the only thing that can now be "pulled" is the water in the carpet so the pull is the LIFT. The vacuum motor continues to suck the air out of the vacuum hose to try and create a true vacuum. When you place a wand onto a wet carpet, you create a seal. The blower or vacuum motor is trying to create an absence of air. When the vacuum is on, air is sucked into a vacuum hose. From what I understand - CFM is the measurement of air sucking into the vacuum motor. Why don't they list the water lift of the machine? Why isn't that the selling point? Is it because the truckmounts will be running lengthy amounts of hose and they need super strong CFM?ĬFM and LIFT seem to have their purpose in cleaning carpets, but I don't think CFM pulls water out of the carpet. CFM seems to be the thing listed the most in companies that sell truckmounts, and even some portables. ![]() Maybe I am mixed up a bit in my early research of the carpet cleaning business? I thought the bottom line was, the more suction power you have, the more dirty water you remove from the carpet? With that said, if a portable can create powerful LIFT, wouldn't that work?Įverybody seems to want to boast about CFM. I wonder, has there ever been a comparison showdown at a trade show between a good portable and a truckmount? If you end up having a portable and a truck mount with the same specs, same operator, same wand, same chemicals, etc, etc, wouldn't the results be the same?
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