Hot Vs Cold

O

O'Brien Services

Member
My unit is cold and 4gal minute. I cant logically understand why hot cleans so much better than cold. The pressure coming out of the wand is no different and that is what equals cleaning power. I would love to see side by side the cleaning of a 4gal hot next to cold and compare the difference. Am I the only one who thinks this way?
I dont have a problem buying a hot water skid (if anybody is selling a used one), but I just dont believe it cleans that much better...mind you I have never tried one.

How is the initial contact area affected by water temperature? I can understand if it sits on there awhile..but not the initial contact.

I am just trying to your input

Open to suggestions,
 
What are you cleaning?

O.K. here we go - you can do this experiment without any type of power washer.

Test #1

1) Go outside rub your hands in the grass, dirt, grab some cob webs in the garage - but make sure you don't touch any grease or oil. Then go wash your hands with soap and COLD water.

2) Do the same as above but instead replace HOT water for COLD.

Test #2

1) Change the oil on your machine, truck, lube the chasis, ..etc.. Then go wash your hands with soap and COLD water.

2) Do the same as above (yes you can change your wifes's car oil if you don't have two trucks). Now wash your hands with soap and hot water.
 
Results of test

Did you do the test or are you cheating?

If you did the test you should find that:

1) in both cases it was easier to clean with hot water (all other controls being the same).

2) In test one you could get both results close to the same with more effort in the cold water test ( be it more soap or more aggitation).

3) In test two with oil and grease it his more difficult to move this soiling with cold water.

The Moral:

It all depends on what your cleaning if you can get away with just using cold water, but all in all you can do a better, faster job using heat.
 
To further Tim's adice - the crap he was cleaning off (dirt, especially grease, etc.) is more soluble in hot water; therefore it works better. Decide what type of cleaning you want to do - then decide if you need hot water.
 
umm,
im kind of new and im just getting around to reading this forum,
i would just submit that they sell this stuff called pumice--
usually you would find it in an auto body shop, its really hardcore hand detergent -- and i would say cold water and that detergent would certainly remove your wife's 10w-30 from your chilled digits.

the moral of the story:
if you get the right chemical, and let it do the work,
youre just rinsing the dirt (and chemicals) away
but not in the flowers, right???
 
Hot water cleans much better in almost every case. No need to take tests, it's already been tested and proven over and over.
 
Another illustration, is you can't clean a grease hood with cold water and chemicals. You can't even come close to a good job.
 
O'Brien....
OK your are right....now go take a "cold shower" and tell your wife to wash your clothes in "cold water"....and fix your dish washer so it only washes with "cold water....
 
Hi Obrien,

The hot or even warm water opens the pores of the object your cleaning.. This allows the dirt to lift out easier. I've also done tests and hot water cleans better on any surface I've tried. I've even tested warm water on wood and it does just fine if kept within reason but it can be risky.
 
"but I just dont believe it cleans that much better...mind you I have never tried one.

I guess you just need to believe!! ;) Some of us have spent a lot of money to make our equipment capable of producing hot and in some cases very hot water.

If chemistry could do it alone to you really think that we/I would spend big bucks to have hot water just for Grins!! :confused:

My pennies worth,

Dave Olson
 
Vent Hood Cleaning Hot Water is a must.. Eventually with cold you can get things clean but time is money.. With Hot Waterthings go quicker. You Can do More and Make money Quicker.
If you go to a local do it yourself car wash you will notice during applying the soap warm to hot water is what comes out of the nozzle.

Also like us hood cleaners will tell you the hotter the better that is why alot of us use caustic soda or drain opener which makes the water solution extemely HOT.. Thats How Drain Openers work They take tap Water and By a chemical reaction get real hot causing grease to emulsify.

Hey If you don't want to spend a bunch and you got a good cold water machine .. go to northern tool and buy a Hot Box they are only about a grand.
http://www.northerntool.com/webapp/...?storeId=6970&productId=200016124&R=200016124
 
I Look at it this way. You wash your dishes with HOT water because it does a better job go ask your mom if she washs her dishes with cold water im sure she will slap you.
 
O'Brien, it seems most of the answers you are getting is supporting your dwell time theory. Washing clothes, dishes, showering, and even hand washing is a, somewhat, timely thing and a lot of water is applied to one area. Often times much more water much longer than if you were to pressure wash. The only difference i can give you is real time. I washed my own driveway and my neihbors with my pressure washer, with heater. As I got to my driveway, I ran out of deisel fuel and lost my heater. I continued and I was not using any chemicals. My neighbors driveway is still perfectly clean, but my driveway has a little stripeing from the surface cleaner, right where the water went cold. It has been about 1 1/2 months, and i might be the only one that really sees it, but It is quite the difference.
 
Hi, guys. I,m new to this site and business. right now all I have is cold water.Are there any things that I can clean now with cold water
 
This is my evaluation,i use hot on almost everything,it just cleans faster and better.When i wash the dishes i use hot water,when i wash clothes i use warm or hot,heck i even use it when i brush my teeth(they are sensative to cold)HOTTER IS BETTER!!!!If you try it you will think you died and went to heaven.
 
I agree that hot is more efficient is most cases, often cleaning made faster is cheaper.


However the reverse is said that you may use more chemicals to get the same result with cold water rather than using hot water.

I think often it can be what the best formula is.

Water is a solvent; we can all agree that water is what the primary cleaner is. Chemicals and hot water can speed this process as well as pressure.


Using cold water in the past I have gotten the same results using chemical, the cost were higher and over all it was more expensive.

In other situations I have lower the cost of cleaning by using cold.

Depending what we are cleaning I don’t always agree that hot water in more efficient.

Keep in mind I’m not arguing with anyone. Mr. Olsen has my highest regards and respect as one of the most professional and successful cleaners on the planet. I would guess he might agree with this point.

If using hot water PW far away from surface I believe we are just wasting our money and precious energy. Example: Washing a tractor trailer or home. Unless the distance to the surface is very close the water has cooled to really have no real impact. (chemical do primary cleaning)

Dishes, if grandma sprayed the dishes from fifty feet away with hot water I doubt the water would even be very hot after traveling that distance.

The dishes are usually soaking in water. Hot is better in this situation.

By knowing what really matters in situation and of course you personal demographic. You can make and educated decision on weather cold water or hot water will be more cost effective.

If you’re close hot is 99% more effective.

My 1% hot waters no good. Interior restrooms, the room are very small and hot water actually slows us down. The steam vapors make it impossible to see in the area. Using more chemical and cold water make this procedure faster and more cost effective.
 
I agree totally wih you Ron,I have ran into the same problem in the extreme cold when using a surface cleaner with hot water ,I would have to stop and let the steam clear so i could see what i was doing.This happened the other day while doing bank drive thrus!Onthe other hand mabe im wrong but i have used hot to apply chems and cold to rinse some times it works or i may be just wasting fuel.I guess its a personal preference.Well im off to WORK !!I would like to hear what you think about applying my chems with hot (this is mainly done on aluminum siding or vinyl)like i said it is something i tried once and sort of stuck with it for some reason, but i would like to hear what you have to say about it.
 
You must log in or register to reply here.
Back
Top