[daysdeepclean]

If a porty produces a better psi and a better lift than the one you've got.... That's an upgrade in my eyes!

[Ricky M]

No colin wasnt havin dig was just a pondering
On the up grade theory

[daysdeepclean]

No worries Ricky, I was just putting your ponder to bed mate

Regards, Colin.....

[AJB]

My maths may be wrong, but having Googled Hg - Water-lift comparison.
My Powr-Flite has more water lift than most truckmounts ( 17+ Hg). Granted the CFMs
don't compare at all well. But i can happily clean just about anything at 500 Psi, without
fear of over-wetting, and with quick drying times.
When i use my home made booster, i double the CFMs and have problems with the Wonderwand
locking to the carpet. So don't assume just any Truckmount is an upgrade.

[elliott cleaning]

Lift is not a crucial issue.  Cfm is of more interest.  As we all know   heat is an important factor in easing the cleaning process and this is where a t/m helps.
At the end of the day what is our portable or truckmount doing? Rinse extracting the dirt, but oh, how many more square meters of carpet can you rinse extract with a t/m compared to a porty.
Then again, if you don't have many square meters to extract on a daily basis, why upgrade to a t/m

[Shaun_Ashmore]

CFM and lift is only the vacuum power what about the 'cleaning' ie the water flow? I have 5.5 gallons a min on my TM some porties only do a gallon so how much is really being rinsed? the vac should be linear to water put down.

Shaun

[elliott cleaning]

You are correct Shaun. Flow rate is important. The more you flush, the more dirt you will extract. A porty can flush as much as a t/m but you will have to spend 3 times as long doing it.  Hence the t/m advantage for high area carpet cleaners

[Andrew Briscoe]

Van mounted Recoil with Bane tanks, inline heater when needed, and E40 for aggitation,

Andrew

[Ken Wainwright]

AJB

I think you should check your source for comparison on the mercury/water inches lift thing.  Powerflight's website rates their top spec range at 150 or 160" water lift depending on which page you believe, from 2 x 2stage vacs.  The conversion chart I used puts 150" water lift @ 11.0"Hg and 160" water lift @ 11.8"Hg.

As far as I'm aware, there are no extractors working at 17"Hg. Portys would collapse their tanks and T/M's would need more than a glide to stop lockdown.

Safe and happy cleaning
The Ken

[AJB]

Shaun are you using 5.5 gals a minute, or is that your theoretical maximum.
What pressure do you clean carpets at, because i often read truckmount owners
saying they clean at 2 - 250 Psi.

Powrflites website quotes for 2 x 2 stage. NOT the 2 x 3 stage HD vacuums, on
the pfx 1350 ph which produce 240" lift.

Amtech quotes 220" water lift.

http://www.amtechuk.biz/perfect_heat_spec.php

[elliott cleaning]

Ken
Some of the 'big' truckmounts such as the Vortex machines do operate at up to 18" of Hg

[Shaun_Ashmore]

Not sure how they rate the 5.5 but I clean about 350psi but with 6 x 11015 jets which is another thing to put into the conundrum....Carol

Shaun

[AJB]

Working on Amtechs figures of 220" lift, and using the formula
Hydramaster use, this gives 16.29 Hg ' 101 CFMs, which puts it nicely
on the graph line. The line demonstrates well that either vac optimised or air
optimised, work as well as each other, as long as they are balanced to produce
optimum results.

http://www.hydramaster.com/inside/articles/article2.asp

[elliott cleaning]

Would assume the flow rate, be it 5.5 galls per minute or whatever depends solely on the pump parameters.  Whether you squirt it through 6 or 2 jets should not effect that figure

[Ken Wainwright]

AJB

My suspicion is that Amtech have made an error and published cfm  figures instead of lift. Looking at the US manufacturers Powerflight spec sheet for their different US models  http://www.powr-flite.com/istore/machinepdfs/PFX1300.pdf  you will see more realistic figures although they may be marginally different for 110 volts, but not by much. As you correctly stated, Powerflight use 2 x 2 stage vacs as I originally stated.

Paul
Wow

Safe and happy cleaning
The Ken

[Shaun_Ashmore]

You're right about 6 or 2 jets but I meant that you have to look at what water is getting to the wand but also at what is coming out, 6 x 11015 is 0.9 where as most porties won't even do 2 x 0.3 and that's flow without getting into psi.

Shaun

[elliott cleaning]

Accepted Shaun But why are either of us in this thread.  T/mers'
excluded I believe the initial post stated

[Shaun_Ashmore]

You are right but I just need to take my mind off things after watching the TV about 3pm today

Shaun

[Ken Wainwright]

AJB

Apologies. Just rereading your post and the US specs, I see 2x3stage of your machine is, I presume, a UK only spec

Safe and happy proof reading
The Ken

[AJB]

I Take it everyones been watching Britains got Talent, as it went very quiet
since just before 9.