Here is a photo of what a 295 degree burn looks like.

Jim@Garagecleaning

Jim@Garagecleaning

banned
Had a new guy holding the hose. We warned him that the hose is hot and don't touch it without the cloves. Because he worked before for another pressure washing company, he did not take to heart what was warned very well.....

His skin started to blister about an hour later. Though I offered to take him to the ER, he insisted that he was alright and that it did not hurt that much. I called him the next day and he said he was fine.

Our hose is a R2, 1/2 inch hose. This burn is from the hose not the quick connect as some of you can tell from the line of the burn. This is not a "spot" burn.

Our temp at the time was 295+ degrees at 4,000 psi at 6 GPM. This puppy was hot and because of the limitations of the hose, we only ran this hot for just over half the day at which point we had to change out the hose for a new one.

Outside temp was 84 degrees. We had 1 boiler on at the time due to the outside temperature being so high.

Since we rarely need both burners on one pressure line, I have made a decision to redo the layout of the boilers. From now on, we will only have 1 boiler on per pump. We also will restrict the full use of the boiler when outside temperature is above 85 degrees.

Also a note.....

I keep getting contractors calling me saying that their 380,000 BTU boiler is reaching 300+ degrees at 8 gallons per minute and they don't get burned.:eek:


Lets see if I can explain this in a different way....

Just because you have a thermostat dial that says you can dial in 302 degrees, DOSE NOT MEAN YOU CAN REACH THAT TEMPERATURE. It's like the a/c in your home during the hot summer. If it is outside 110 degrees with humidity at 80%, you can dial and set your thermostat to 45 degrees, but you will never reach it in your home. Same with your boiler.

If you want to really know what is your temp, get a temp/ pressure gauge (about $54) and stick it just before your nozzle at the end of your wand. Extend you hose line all the way out, off the reel. Run you unit at night after midnight, and with a flashlight, read your temperature after 10 minutes of use.

Don't be surprised with the reading. Just because you have set your temp to 302, with full pressure and full volume of water, you may only end up hitting 175 to 185 degrees.:eek:

Thats my two cents....
 

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I like that you do your homework and know your equipment. I share the same passion with our softwashing set ups. Crappy that your man got burned, but he probably won't get burned that way again. Very impressive rig, by the way.
 
I am sure he will respect that hose, temp and you too now.

He is very lucky that it was not worse like losing skin and not being able to work for a month or so (I know about that).

Are you able to use those hoses again or just one-time use on those jobs?
 
What do you need 300degrees for?
 
When we had our carpets/tiles cleaned a couple of weeks ago, the tech told us to steer clear of the hoses because they were very hot and would burn us. I made sure to steer clear, but I went over to talk to him and didnt realize I was standing on the hot hose. I screamed like a little girl, and got laughed at, but luckily I had socks on and no damage was done. I tell you, that sh@! hurts. And he wasnt running anywhere close to 300 I dont think.
 
We use 300 degrees for oil removal and or to increase our cleaning units on stained concrete.

For example, rust stains will become up to 50+% lighter and sometimes even remove it due to the extreme heat with no chemicals used.

California is making it more difficult to use chemicals for stain removal without water reclamation. Though we do water reclamation on garage cleaning, sidewalks or open areas prove to be more of a challenge. For that reason, we choose not to use chemicals in those type of areas.
 
he learned his lesson. I have a scar just like that from one of my Ar15 barrels, acidently touched it after some rapid fire.
 
HEY GUYS,

I appreciate all the input for the Kevlar sleeves. I am ordering some but for some reason I lost the site that I thought was best. It was not Kevlar but another product that would help us with pressure also.

Anybody know what I am talking about... because I sure don't.

I will keep loking through my email, however your inputs are most welcome !

Jim
 
we use the extreme DRY steam for lifting the oil from the concrete. It is also every useful for gum removal with little run off. Dry steam has more cleaning capabilities than wet steam.

However, using some that are not allowed in California and other coastal states, can do the same or in some cases even better than dry steam.

If your state / city is EPA cautious, then other methods other than caustic or acid must be used.
 
I work in a glass factory also and the hot glass in liquid is 2000 degrees. After the beer bottle is formed it is about 800 degrees. When you get burned by the glass it get gray and you you cen not feel it for a day or two. Then it peels. Luckly I have only had small coin size burns. So guys have gotten hit with the liquid glass. It's not pretty.
 
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$51.64

This comes with 3/8" QC fittings. Can be installed at the machine or between the hose and gun. For end of the wand / nozzle connection, some adaptors are required.
 
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