[Evan Smith]

Hi  guys I wondered what your thoughts are on these two vac systems. I have an  Enforcer 400 with in series vac system and was wondering if it would be worth changing it to a parallel system.
Evan

[Your Cleaning Matters]

In parallel will give more suction, but may not be so easy to convert it. You will need separate vacuum intake  and exhausts tescts to make it work efficiently

[Ian Harper]

Evan Smith

you should never mess around with this type of stuff machines are build and tested. the body of a machine is designed for the setup they have chosen. changing will not make any difference to your cleans.

Now looking at other parts of your method can change results or make things easier. types of products, pre spraying, what you follow though with in your machine. dwell times, heat, are all in balance with each other.

as your talking about vacs then air calculation in the rooms can help. when the air in a room fills up with moisture then the carpet stops drying.  have new air and circulation will speed drying.

wand technique can change things people can  get into bad habits or say suffer from bad backs and this can change things with out them  noticing.

Just some thoughts,

Respects 

[Evan Smith]

I wouldn't try to do this my self Ashbys  have said this is possible. If I were to go down that route I would have them do it. It's just when you go on these forums or go on the machine suppler Web site they seem to me to be going to the parallel system.
Evan

[Robin Ray]

Parallel has twice the airflow of a series but with the vacuum lift of one motor. For example 200 cfm and 130 inches of water lift

Series has roughly 70% extra vacuum lift but only the airflow of one motor. For example 100 cfm and 220 inches of water lift

So what is better?
Having had a series machine and a parralell machine it is clear the parallel set up gives better drying times and allows longer hose runs. This subject has been debated for ever and many will disagree with this, however that is what I have found.

Is there a way of having the best of both worlds, both high lift and high airflow?
Yes.... it is a Truckmount!

Some however have coupled four motors together into two lots of series motors connected in parallel, which is the same as having two Enforcers joined together with a Y piece. This will provide excellent vacuum and airflow but will draw roughly 6000w  of electricity, you will need a further 3000w to run a heater. While some get on with this set up with no problems it is at the limits of what domestic electricity supply can provide and if someone turns the kettle on (another 3000w) while using this set up it could trip the supply out.

Having said all that up to around 50ft of hose there is little difference in any set up, vacuum wise that is.

[Evan Smith]

I believe a parallel system is supposed to be easier on your arms. I have just had a shoulder operation and thought that may be the way for me to go. Thanks for your help.
Evan

[CleanerCarpets]

i've converted my Ninja into parallel so i could use the 2 inch hosing i use on the other machine - works well

[Robin Ray]

I believe a parallel system is supposed to be easier on your arms. I have just had a shoulder operation and thought that may be the way for me to go. Thanks for your help.
Evan

Try a glide Evan it really makes a difference on you arms and shoulders.

[Russ Chadd]

I have an Ashbys Enforcer and an Alltec Express, both have exactly the same vacuum motors in series.
I use these machines as portables, 25 -50' of vac hoses and the performance is outstanding.
You will discover that series machines require a slightly different wand technique compared to a parallel machine.
For example series machines rely on lock down in order to reach maximum lift so before you make your extraction or dry pass you need to wait a moment for the machine to reach full power and then pull back on the wand.

I very rarely use my TM to clean upholstery, in fact i would say that my portables are much better suited and achieve better results. 

[Dave_Lee]

Ive had both series and parallel machines. The series ones give more 'suck'. I found that when set in series the vac motors didn't last as long as when in parallel, probably due to one vac 'sucking' through the other, they become hotter. There are machines available with up to four vac motors, however imo top end twin vacs are all you really need and less trouble in the long run. Imagine having to mess about if power is less than normal with four vacs to check out, or indeed replace.
Dave.

[john martin]

Ive had both series and parallel machines. The series ones give more 'suck'. I found that when set in series the vac motors didn't last as long as when in parallel, probably due to one vac 'sucking' through the other, they become hotter. There are machines available with up to four vac motors, however imo top end twin vacs are all you really need and less trouble in the long run. Imagine having to mess about if power is less than normal with four vacs to check out, or indeed replace.
Dave.

series/parallel quadvacs are perfect in that they solve all the 'issues ' with series and parallel   , the lack off strong suck in parallel ... the slowish time it takes series to reach its full suction etc  .
actually its almost criminal that they are not available to the masses in the UK .   
I would imagine its partly the manufacturers dont want to upset the accepted status quo  ,   you plug in your twin vac ...and heater into the same room and thats the accepted norm  , in the states where they are electricity challenged they are used to finding separate circuits and  most of the portables come with circuit indicators on the machine .
So in the uk plugging your 4 vacs into the one room is no problem  ...  but to add a heater the manufacturers would have to educate the buyers as to where to find a separate circuit and perhaps add the indicates to the machines .

I am using my quadvacs on 90% all carpet jobs now ...  no matter what the distance ,  its like when machines were single vac people probably said thats all u need to extract ,  and so u might think twin vacs are all u need to extract , but  then u try quad  ... and the twin seems inadequate  .
 

[Dave_Lee]

Of course a quad vac machine is going to provide more power than a twin vac, but If using a portable, I think a top end twin vac is adequate, I get 12Hg out of mine, however mine is just a back up to my Blueline Thermal Wave HP, TM. Most TM's including mine with 5M blower have a vacuum safety relief valve, set at 14Hg.
There again, I wouldn't use my TM wands with the portable, or my portable wands with the TM, it's about getting the balance right.
Dave.