A different animal

Christopher

Moderator
Those things are setting off my B.S. detector full blast!

Is there any proof to what they are saying?

Anyone here try one of those things?
 

Tony Shelton

BS Detector, Esquire
This what you get at the end of 925 ft of 1 wire hose with 58 degree ambient temps full blast (5.5 tip)

About 210 @ 2500 or so psi

It climbs a lot higher temp than that with the ball valve turned down but I try to limit the time we use it like that and have to ease it down by letting it go full blast till it gets back down to 200.

 

Tony Shelton

BS Detector, Esquire
Sometimes you only have this much room to work



But you have to produce these results

 

Tony Shelton

BS Detector, Esquire
That is insane. How the heck do ya work in such a tight space? Gotta hand it to you Tony. Y'all are doing a great job.

We do it the same way you turn a black roof to white. We are all professionals who do what we have to do and innovate when we have to in order to get the job done.



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Tony Shelton

BS Detector, Esquire
Btw here is a picture Shelly took at the truck when we were working with the ball valve turned down at 475 ft of hose



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flanbo

New member
Hey Tony just chiming in on this old post. I like to Tinker with tools and wood working jigs. Carpenter by trade. I have an idea for those tight coil cleaning areas for the vacuum and rinsing. A wallpaper steam kit may work great for tight spots. The actual steam end guess the wand is very flat with the hose being in line. My units wand is approx 12x12 about 1 1/2" thick with a 5/8" - 3/4 cheap hose. Could be modified for a larger vacuum hose pretty easy. Then it can be used for steaming and soft rinsing. The wands flat 12x12 area is cupped and will also prevent excessive over spray. Lowes and Home Depot sell it for $20-$30.
 

Tony Shelton

BS Detector, Esquire
I tried to make something almost just like that a few years ago. It worked pretty good. I stopped using it because it was a slow and cumbersome process. Also was worried about the guys using it Maybe it is time to revisit that idea.

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Tony Shelton

BS Detector, Esquire
The picture I had painted in my mind was something like mission impossible where you would be suspended in the air above people playing slot machines trying not to get water on them. hahaha Shows what a dork I am. lol There seems to be a lot to do there.

I imagine if the system are running it could suck something into it, like a hat or glasses while you are working.


Here's your mission impossible scenario......With Matt and Brenda from Colorado Pro Wash in training a few years ago.

 

flanbo

New member
another idea

next week if i have time i'll try and rig something up. Using the Wall paper steam end wand as a prototype attach 3-4 nozzles inside kind of like a water broom. 1 or 2 Delevan 5800 pumps feeding those nozzles would really pump the debris out nicely while keeping over spray contained. moving on to part 2 Reading about you running 300ft of hose inside , thats a pain in the a$$ and a risk factor. How about using a 5800 or fat boy pump mounted the a cart with a 75 gallon h20 tank plus 50ft of keritec hose . add a hudson float valve and 50ft of feed hose to keep production up. Add a 3 way valve for a chem line. The cart could possibly be loaded on a electric scooter or motor cycle trailer hitch platform with ramp for easy loading.. Most of the weight will be the batteries. or I might be nerding out a little much?? My wife would say "can you just paint the bathroom already"
 

Tony Shelton

BS Detector, Esquire
next week if i have time i'll try and rig something up. Using the Wall paper steam end wand as a prototype attach 3-4 nozzles inside kind of like a water broom. 1 or 2 Delevan 5800 pumps feeding those nozzles would really pump the debris out nicely while keeping over spray contained. moving on to part 2 Reading about you running 300ft of hose inside , thats a pain in the a$$ and a risk factor. How about using a 5800 or fat boy pump mounted the a cart with a 75 gallon h20 tank plus 50ft of keritec hose . add a hudson float valve and 50ft of feed hose to keep production up. Add a 3 way valve for a chem line. The cart could possibly be loaded on a electric scooter or motor cycle trailer hitch platform with ramp for easy loading.. Most of the weight will be the batteries. or I might be nerding out a little much?? My wife would say "can you just paint the bathroom already"

This is like deja vu to me. I am like you. I am always looking for a better and more efficient way. You can ask Jerry or Paul, I'm always asking them to rig up something I think will work better.

In addition to your idea for the steamer (which we experimented with a few years ago) I also rigged up a similar setup that dispensed foam and forced it deep into the coils about one square foot at a time. It worked! But the trade offs, just like with the steamer, were just too much. I am the king of making things, that cost a lot to research, work on paper, then don't work so well in the real world.

Part 2: Rarely do we run 300 ft of hose through any area where there are people. Most large buildings have dedicated floors just for hvac or they are located on the rooftops. When air handlers are located in ceilings with catwalks we use portables provided by Jerry with electric shutoffs. I can't imagine moving around a 75 gallon tank. Sometimes there are places where you have to bring the unit up and over obstacles many times just to get to the unit. A 15 gallon tank is just about max a couple of guys can handle. What you are talking about would work great if the distance from flat ground wasn't over 2-300 ft at times.

3) While the proponents of high volume vs pressure like to believe that anything can be cleaned with low pressure, I can tell you from experience, there is nothing like the availability of at least 2000 psi to blast out the sides and corners of caked on gunk. Cleaning isn't just dependent on water volume, most cleaning requires agitation. That agitation comes from pressure. The availability of BOTH high volume AND pressure is the happy medium that gets jobs done fast. There is a company that cleans condenser coils with 90 gpm and up to 3500 psi. That is ok for cleaning condensers until you lose accounts for overspray blowing up fan motors. That kind of gpm would flood buildings if used to clean evaporator coils. I know for a fact that one could do maintenance cleaning on condenser coils using nothing but a fire hose hooked to a hydrant. They max out usually around 100 or so psi. It works, but it won't blast through caked on dirt like a 3500 psi blast will, it just gets it wet. There are lots of 500-700 psi coil cleaning units in production that HVAC companies use. I probably have one of each brand in my garage collecting spider webs. They work, especially if you are an hourly union worker. lol. But if your income depends on speed, accuracy, safety and thorough cleaning nothing beats the availability of high volume AND high pressure when needed.

In this video you can see the fan on the gun changing as I had a to change pressure to deal with bad spots at 1:08 - 1:25

And at 1:36 you can see what high pressure looks like when it's finally blasted through and is forcing it's way through the coil.

Low pressure can't do this, without flooding the building. This was taken before we had Jerry's vacuums. Now we don't have to slow down for the vacuum to keep up like we did in this video.

 

Tony Shelton

BS Detector, Esquire
HVAC work isn't just cleaning coils. All kinds of things damage coils from windblown objects, to hail, to inexperienced coil cleaners.

 

Tony Shelton

BS Detector, Esquire
Here's another one. After this I learned my lesson and we don't clean any coils anymore unless the customer agrees to fin straightening as needed. When fins are damaged it is impossible to thoroughly clean the fins.

 

junker1

Roundtable Host 2009
Heres one for ya Tony, I was in my way to Lowes when i saw this truck. I had to stop and take a pick for ya. They have a nice setup. 1440519177327[1].jpg
 

Tony Shelton

BS Detector, Esquire
Yes, The owners and I have spoken at length. They do good work. Solid bunch of guys.

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