[Johnny Czarnota]

Hi,

can you tell what is the proper psi. I mean what is enough for domestic carpet cleaning and what is enough for commercial carpet cleaning.

thanks in advance

[markpowell]

There is no proper PSI, it depends on the carpet type, level of soiling, Chems used, agitation method etc
However i would not like to go below 130 if possible
Mark

[Johnny Czarnota]

130? only few prochem machines have that. Can you help with the math. 1Bar = 15psi ?

[markpowell]

130psi is 8.9 bar

[peter maybury]

It is not quite as simple as what psi,  the type of machine and suction , the number of jets on the wand the flow rate on the jets, how much water your machine can hold how much water your machine can recover, type of carpet , type of soiling. all factors that affect the results you get...........

Peter
www.carpetcleanercardiff.com

[Johnny Czarnota]

how many litres per minute should the machine spray? I have machine with 2 BARs (3l per minute) wich is 30 psi and it does amazing job.

[robert meldrum]

Johnny

The only machines with such low pressure usually have a " barrel type " brush so you can get good results but are very slow in use.

[Johnny Czarnota]

yes i do have powerhead attachments with rotary brush (i have 4 of them), I wish to upgrade to more powrfull machine like steerpro, but anyone knows if i would be able to connect those brushes to it. It makes jobs tones easier, and I have just had knee surgery

[cleanability]

Ive always cleaned with 135psi. Why you'd want do drive the water into the carpet at huge psi's which some do beats me. Surely we're trying not to wet the back of a carpet?

Chris

[markpowell]

its about having the vaccum power to recover the solution, whether you are rinsing at 30psi or 300 psi.
Mark

[Jamie Lindsay]

135psi pump 2 3stage vacs min if you want repeat business

the vacs are more important than pumps

[Johnny Czarnota]

with my machimes carpet is nice and clean and dries within 4h or so (30 psi) and i used these machine for 6 years and it satisfies my customers. What is your power of the suction engine in WATS?

www.ejcarpetcleaners.com

[robert meldrum]

Can I ask why you need to know the answer to these questions, especially if you're happy with the results of the past 6 years. For comparison, I have used many machines over the past 30 years and some would have given similar results to yours, but, for instance, I did a small flat onThursday which took me 90 minutes ( including moving a fair amount of furniture )

By the time I'd finished the entrance hall and started to pack everything away, my client had tested for dryness ( back of hand ) and was amazed to find the area I'd started at was dry, to touch which is what I'd told her to expect.

This was using 120 psi and twin vacs in a fairly ordinary machine.

[Ian Gourlay]

So does that mean a 110 bar pressure  washer is about 160psi.

[Johnny Czarnota]

110 Bar is NOT 130psi, 1Bar = 14psi.

I am asking these questions because im thinking to upgrade and want to know what difference does it make using more powerful machines.

I have just done studio flat today and the part  i started from was dry within 60 mins. Ventilation of the room was great though

[Steve Rothwell]

Johnny if you get a more powerful machine you will be able to work quicker, but you have to weigh up the deciding factors of weight of the machine and setting up and packing up time.

[Johnny Czarnota]

quicker, i am using powerheads with power brushes right now. Can i do average dbl bedroom quicker then 40 mins?


www.ejcarpetcleaners.com

[robert meldrum]

As you are happy with the results there is no need to change anything......................many will suggest they get FAR BETTER rsults from machines with higher PSI and higher VACUUM extraction power.

Like many others I have used low psi machines with powerbrushes and single vacs and achieved what we regarded as excellent results and they were good............but.....when using a modern machine with five or six or even eight hundred psi and powerful twin or triple vacs the difference is huge.

You don't HAVE to upgrade but the difference in TIME TO CLEAN / EASE OF CLEANING / ABILITY TO TACKLE VERY HEAVILY SOILED COMMERCIAL CARPETS is what makes it worthwhile.

You could continue what you do and save having to invest around £3000 plus, if you only do domestic work. It's a choice only you can make.

If you can't get your head around the thought that you get a good result with a tiny pump so what does a massive pump actually do to make it worth investing in.  It makes it quicker, easier and faster. There is less or no need to aggitate if you use high psi as the force of the jetting does all the aggitating you'll ever need but such high pressure needs high vacuuming power, or you get very wet carpets.

With the low pressure you use there is slightly less penetration into the fibres and you will remove less of the deeper soiling, however, you can overcome this by double cleaning, but why bother when you can go over the process once with a more powerful machine.

Incidentally you would take nearer 20 minutes to complete double bedroom with a more powerful machine.

You will also elimjnate the need to use the power brush. Many have followed this path in the past with great success and satisfaction.

[john martin]

This sounds like the puzzi guy again ....
Whats that in the pictures ... a puzzi ?   

I think some of those karcher power brushes are 24v runing from your machine outlet ...
so you will have to pick up a transformer to run them from a socket with your new machine ...
You may have to upgrade the trigger valve /hose for higher psi also .
As others have mentioned advantages of larger machine include larger tanks /less filling emptying
onboard heat ...  ability to use long hose runs ... etc    so you dont have that puzzi right beside you all the time ....

[robert meldrum]

This is actually an interesting perspective on what " running a business " is all about.

If you presented your business model based on this gent's thinking and backed by his web site - which incidentally is completely honest about what they use and how they work - against some of the opposite end thinkers who reckon the way to go is - spend tens of thousands on powerful machinery and try to justify your expense by charging high prices - which model would the members of the Drogons Den or for that matter any institution who lends on BUSINESS CREDIBILITY be likely to choose.


John M

The web site is pretty impressive and you're correct it Puzzis but I don't think it's the same person.