700psi

[Walt]

I am very surprised at the claims of cleaning at 700 psi and getting good dry times. I tried this a couple of years ago on some hammered berber with a properly adjusted ti wand with 6 flow with hole glide. (Single wanding on 6008 Vortex. Amazing suction and Heat. Back strokes only. Prescurb and post padded) It felt dry to the touch after a couple of hours but was still wet for two days- I checked it with a moisture meter. It did look really good though.

Either you guys are doing something different or you are leaving the carpet (pad) wetter than you think. Have you checked? And I don't mean with you hand. If so, what are you doing different than I did?

 

[renegade_cowboy]

I agree, its kinda a no brainer. Its crazy talk if you *dont* think you are soaking the backing and pad at that psi. I'm thinking they did a few test at the IICRC to come up with the proper psi usage. :roll: Who cleans at that psi. I am on average at 350 psi.

:mrgreen:

 

[Curtis Pennington]

I switched to 700 psi on the nasties and the results are amazing ..no complaints on dry time,browning, wicking problems but I do dry stroke 2-3 passes. I use 500-600 psi on light-med stuff.....your missing the boat on psi fellas,try it you will thank me. Also I cleaned an oriental rug at 700 psi and I flipped it over and no moisture on the surface I was cleaning on...flush and stroke brother.

 

[Mike Draper]

2.5" hose and a Greenhorn..... that's how.

 

[ronald pantelas]

I agree with Mickeyxj8.

 

[Mikey P]

With the Mega MB set up it's not the wanding you have to fear, it's the over pre spraying.


Soak an Olefin down and the backing and pad is gonna get damp, no tuways about it.

 

[Ron Werner]

at minimum, the Greenhorn. Its design allows for higher flow and dryer carpets.

 

[XTREME1]

450-525 psi with the APEX

650psi with the Everest

 

[Bob Foster]

One aspect that is key to not over-wetting is how the jets are aimed.

If the wand jets are aimed to barely touch the back side of glide and mostly on the cleaning surface then higher psi is good.

If you are running old school where the spray is striking anywhere close to perpendicular to the cleaning surface then extracting with higher than 400 psi might not be a good idea irrespective of blower or hose/tool size.

I will even go as far as to say high flow jets are not a good idea unless you are running 2.5 hose to 2 inch tools with high lift/vacuum and forward leaning jets. There are exceptions.....

Les and Greenie had some pictures of water flow and shear action with forward leaning jets.

 

[Jim Martin]

Who was it that said "there is no such thing as over wetting....it's the under drying"

I think it was Greenie.........

 

[Walt]

Perhaps it was too much prespray. I have a habit of laying it on pretty heavy. But many posts of high psi - high flow say they use a huge amount of pre-spray as well.

The real question is do we really know what our dry times are? Not just the hand test.

Who was it that said "there is no such thing as over wetting....it's the under drying"

I don't mean to contentious - and I think I know what Greenie is getting at, but unless you are using multitude of blowers (which I gather most aren't) then it certainly is possible to "over wet" a carpet - especially here in the land of perpetual rain.

BTW - this isn't an accusation or a critiquing of high flow, high psi. I enjoy both, but was caught of guard with my test a couple of years ago. And since have reduced psi to 450 on berber.

 

[TimP]

My guess would be that you were running 6 flow and not higher like the rest of us. 6 flow at 700 psi probably hits the carpet harder than us guys running higher flow. Also another guess as to why would be that because of less flow your wand wasn't able to grab the moisture as easily creating a siphon effect to pull the moisture out better??? I'm not sure though....

Anyways I run a 10 flow greenhorn and have checked the backing many times with rugs and no matter what I do the backing is never wet at all. Dry times are well under 8 hours in most cases.

 

[Greenie]

Yes to all the above, I might add that 700 psi on a GH is roughly equiv. to 400 psi on a non checkvalved Ti wand, so let's make sure the devilish details are mentioned.

The Greenhorn jet angle makes all the difference for these over penetration conversations.

I don't tell my Ti wand guys to run 700 just for the record.

 

[steve g]

when I worked at rainbow we cleaned at 1000 psi, the next place I worked at 600psi, I typically run about 450 nowadays but never had a problem with dry times or any other issues with any of the psi's used

 

[Walt]

Come to think of it, it didn't have check valves. I suppose the devil may be in the details. None the less, I haven't had the courage to clean over 450 on berber - even with ALL the goodies. Perhaps I'll give it another try on the berber in my bonus room. I'll check it with the moisture meter.

 

[Dolly Llama]

Walt, the answer is really simple.

Most of the dudes claiming extraordinary dry times are either,

A.) calling dry to touch, "dry" (which it ain't)

B.) they've never used a moisture meter and are full of baloney if they think it's "really" dry

C.) they live in a very arid climate with perfect drying conditions


BTW, Even "dry to touch" is subjective that varies from cleaner to cleaner.

wash and towel dry your hands, then check the carpets and your "dry time" will decrease exponentially :mrgreen:
Using that method, we get 10 minute "dry times" according to many's definition
and on some carpet types, with that method we see "dry" as soon as the wand passes over it


..L.T.A.

 

[Mike Draper]

my definition of dry would be taking a single sheet of newspaper and pressing it on to the carpet before we leave, if it comes up completely dry, then it's good enough to say Dry in minutes, not hours or days! WE use studebakers, 2.5" hose and a greenhorn too!!

 

[renegade_cowboy]

my definition of dry would be taking a single sheet of newspaper and pressing it on to the carpet before we leave, if it comes up completely dry, then it's good enough to say Dry in minutes, not hours or days! WE use studebakers, 2.5" hose and a greenhorn too!!

Newspaper? That kinda werid.

 

[Able 1]

my definition of dry would be taking a single sheet of newspaper and pressing it on to the carpet before we leave, if it comes up completely dry, then it's good enough to say Dry in minutes, not hours or days! WE use studebakers, 2.5" hose and a greenhorn too!!

You ever get the newspaper ink on the carpet? It comes off pretty easy, I would use something without print on it.

Keith

 

[Farenheit251]

I currently use 400 on most resi=a little less for berber but I think alot has to do with how fast you wand.

 

[Dolly Llama]

my definition of dry would be taking a single sheet of newspaper and pressing it on to the carpet before we leave, if it comes up completely dry, then it's good enough to say Dry in minutes,

see what I mean, Walt???
With others it's tissue
Others it kneeling down and not getting their pants wet
and the best I've ever heard was from klepto ken.
It's dry when water doesn't drip off his hand



so tell me, Mike, do you tell Ms Phiff she can put all her wood furniture, office desk pad, area rugs, etc back down right away after your newspaper test?


..L.T.A.

 

[Mike Draper]

yep, cause everything has sticky tabs on it if it's not plastic.

 

[Mike Draper]

yep, cause everything has sticky tabs on it if it's not plastic.

wait a minute, I'm tired. sometimes I do and sometimes I don't ( winter, summer)..............................................forgetaboutit!!

 

[Dolly Llama]

the office desk pad (that the chair rolls on) and area rugs have sticky tabs??


you sticky tab the pieces she moved and are out of the room(s) cleaned?
You tell her she can immediately move all that stuff back?
(with out tabs, cause you say it's "dry")

you don't, do you, Mike?

cause you and I both know, it ain't "really' dry, is it?


..L.T.A.

 

[hogjowl]

I get a really good chuckle when I read these posts about dry times. Like with many other topics, take vacuuming for instance, it is always the case that the more we discuss it, the more likey it is that some Forcynthian idget will complicate it to the point that it becomes another contentious issue.

 

[renegade_cowboy]

the office desk pad (that the chair rolls on) and area rugs have sticky tabs??


you sticky tab the pieces she moved and are out of the room(s) cleaned?
You tell her she can immediately move all that stuff back?
(with out tabs, cause you say it's "dry")

you don't, do you, Mike?

cause you and I both know, it ain't "really' dry, is it?


..L.T.A.

No its not dry but it sounds good on the BB. :roll:

:mrgreen:

 

[Mikey P]

bunch of worry warts.

 

[Dolly Llama]

I get a really good chuckle when I read these posts about dry times. Like with many other topics, take vacuuming for instance, it is always the case that the more we discuss it, the more likey it is that some Forcynthian idget will complicate it to the point that it becomes another contentious issue.

it's either dry, or it's not, PigGutz
Simple as that


..L.T.A.

 

[Able 1]

the office desk pad (that the chair rolls on) and area rugs have sticky tabs??


you sticky tab the pieces she moved and are out of the room(s) cleaned?
You tell her she can immediately move all that stuff back?
(with out tabs, cause you say it's "dry")

you don't, do you, Mike?

cause you and I both know, it ain't "really' dry, is it?


..L.T.A.

Damn meAt! Sounds like something you would hear in court... With that promise(you can move all your stuff in don't worry) we might!

 

[B&BGaryC]

I use a moisture meter and tell people what the results are. Sometimes I have to eat some crow. Sometimes it pegs dry everywhere in twenty minutes.

I usually run my hand across the carpet and then snap my fingers. "Feels a bit damp but it's good to walk on now."

You always have a damp spot here or there, but overall it's dry.

My big thing now is I let them know up front that dry times are based on ideal conditions. I then note potential problems such as furniture obstructing air-flow, carpet construction, thickness, soiling, weather, location (ie: basement) etc. etc.... By then they are expecting it to take until midnight to be fully dry, then they are really pleased when they start poking around and realize it feels completely dry to them.

Funny, my boss is a big Water Damage guy and he is always setting furniture back when he works with me on flood job carpet cleaning way before I think it's okay. I ask him if he wants blocks or a moisture meter and he always says "No, it's dry enough". A lot of times on these large scale floods I end up doing half the house one day, and the other half in few weeks. I always go back and check the furniture. Never have I seen any wood stain or rust, and this is under conditions that I know will trip a moisture meter.