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Old 03-20-2013, 11:12 PM   #21
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"noodle wands" would indicate some floppy out of control attempt at pressure cleaning. That's what I love, pressure cleaning. What happened to my pic BTW?

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Old 03-20-2013, 11:40 PM   #22
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Tonyg - No offense, but it doesn't take an NFL linebacker to hold a hose. I wash a house with less than 200psi and using 3000psi will not clean better. Normally, a horizontal hose will not lose significant pressure (chem draw yes) and 300ft is normal for me.

Sure, I can clean a house with a hose and a brush, some chemical. Might have to scrape some flaking paint and some muddobber nest. How long will it take? Drudgery may be honorable but its not profitable. I can clean circles around any guy with a hose.
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Old 03-21-2013, 05:07 AM   #23
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There's more than 1 way to clean..
"pressure" cleaning,
Chemical cleaning with "SoftWash" rinse,
..and the bucket n brush method.

no argument here,
but since I teach environmental cleaning..
I recommend methods that minimize the use of chemical.
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Old 03-21-2013, 11:33 PM   #24
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Quote:
Originally Posted by 1camper View Post
Tonyg - No offense, but it doesn't take an NFL linebacker to hold a hose. I wash a house with less than 200psi and using 3000psi will not clean better. Normally, a horizontal hose will not lose significant pressure (chem draw yes) and 300ft is normal for me.

Sure, I can clean a house with a hose and a brush, some chemical. Might have to scrape some flaking paint and some muddobber nest. How long will it take? Drudgery may be honorable but its not profitable. I can clean circles around any guy with a hose.

Dude, you must have misunderstood the post. I was referring to a 3/8 pressure line from Sirocco's post. Read slower and click carefully before you start doing your circles. Last Friday I did a house wash on a 2200sf 2 story in suburbia, cleaned the driveway, and did a light strip for a maintenance stain on a small 300sf deck. The house was washed with <100psi in 1 hour 15min, the deck cleaned in 30min with 700psi, and the driveway cleaned in 30min with 3500psi. I didn't need step ladders or extension poles and it was profitable.
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Old 03-22-2013, 12:41 AM   #25
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I've known Tony for awhile and his techniques nad efficiency are similar to mine. This is the way pros wash in 2013. I'm not knocking your technique, its just not done your way much. Definitely more than one way to skin a cat as Jerry mentioned.

I'm sure Tony will say the same thing.. I will put a chem wash up against a pressure wash and win every day of the week. Pressure doesn't clean as well.
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Old 03-22-2013, 09:37 AM   #26
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Bring it.

You said you use 1000 psi @ 10 gpm, he said he uses less than 100 psi... Which is it?

There's nothing new about sodium hypochorite or service.
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Old 03-22-2013, 10:39 AM   #27
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House washing is nozzled for 800 psi. What actually hits the house I have no idea. Its low, but above garden hose pressure. Like I said, whatever works for you is the best method.
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Old 03-22-2013, 11:35 AM   #28
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http://www.google.com/url?sa=t&rct=j...44158598,d.eWU

http://www.asphaltroofing.org/sites/...tin/tb_217.pdf

http://www.google.com/url?sa=t&rct=j...OfKThBi8LCti-w

I can't find one manufacturer of nearly any exterior composite, including paint, used for architectural construction that recommends high pressure for cleaning. Except concrete and even then things should be dialed in.
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Old 03-22-2013, 12:09 PM   #29
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Here is a chart that I use that may be helpful. If you are using a 15* chem/soap tip, you are using a 1540. As far as a 10gpm in comparison to a 5gpm, umm... that would mean double gpm, I could be wrong, and would be sure to function differently. I would have already bought the 8gpm if I didn't need more horse power.
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Old 03-22-2013, 02:49 PM   #30
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Quote:
Originally Posted by Tonyg View Post
Here is a chart that I use that may be helpful. If you are using a 15* chem/soap tip, you are using a 1540. As far as a 10gpm in comparison to a 5gpm, umm... that would mean double gpm, I could be wrong, and would be sure to function differently. I would have already bought the 8gpm if I didn't need more horse power.

Printing that out now.
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Old 03-22-2013, 03:04 PM   #31
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Quote:
Originally Posted by HouseOfColor View Post
Printing that out now.
If you're not using a 5.5 gpm / 3500 the numbers won't work for you. What are you using?
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Old 03-22-2013, 03:08 PM   #32
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4 gpm 4kpsi

I realized that if you have one specific to my specs all the better I'll print it out too. The specs will be changed with a new pump before the end of April. More like 8gpm with 2000 psi max.
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Old 03-22-2013, 03:12 PM   #33
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Quote:
Originally Posted by HouseOfColor View Post
4 gpm 4kpsi

I realized that if you have one specific to my specs all the better I'll print it out too. The specs will be changed with a new pump before the end of April. More like 8gpm with 2000 psi max.
8gpm with 2000psi? Wouldn't that be more like 3k?
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Old 03-22-2013, 03:24 PM   #34
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Not sure exactly Tony. I should have been more specific.

Right now I have a Honda gx630 pushing a little cat pump giving me 4 gpm and 4000 psi max.

http://www.northerntool.com/shop/too...7423_200317423

A local outfit is telling me the Honda has enough for a General or Comet pump with a direct drive gear reducer to get me 8 gpm in the neighborhood of 2000 psi. I'll be talking with Bob about it too when I get around to it. We didn't get to specific with the psi I am more interested in the flow. I'm going with gear rather than belt just because of the layout of my trailer. Not much room for a belt drive and I want to wait until winter of 2014 to set up on a new trailer.
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Old 03-22-2013, 03:50 PM   #35
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This will work better for you, John.

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Old 03-22-2013, 03:55 PM   #36
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What are the numbers in black representing Ken?
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Old 03-22-2013, 04:04 PM   #37
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Quote:
Originally Posted by Tonyg View Post
8gpm with 2000psi? Wouldn't that be more like 3k?
So I'm rinsing with 0030 high and far and 2540 down low on windows and screens and such on this 4gpm. According to this graph if I am reading it right I am hitting the house with < or = 40 psi....

If so I love it. It's effective no doubt as much as possible @4gpm. It's good to know the exact number when selling jobs too.
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Old 03-22-2013, 07:24 PM   #38
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Quote:
Originally Posted by HouseOfColor View Post
What are the numbers in black representing Ken?

Nozzle orifice.

A #20 on 4 gpm is somewhere around 350 psi.
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Old 03-22-2013, 07:42 PM   #39
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Quote:
Originally Posted by PressurePros View Post
Nozzle orifice.

A #20 on 4 gpm is somewhere around 350 psi.

Got it thanks.

The 0030 is getting me every bit of 35' on a pistol grip and likely 40' on a non windy day with wand on it. Plenty of umph to knock down bees nests after hitting them with soap first.

The 2540 is great on everything 10' and lower. Especially windows and screened porches.

I know your graph doesn't give a psi for what I am using but it must be very low which is great for me as well as everything rinses considering I have only 4gpm.

The graph Tony posted is accurate? Maybe I am not reading it right but according to his, a #20 gives me 160 psi.

I don't have a gauge I can place after the tip to measure. It's really not that important I suppose just curious and would like to be able to spew off a real number when doing face to face estimates.
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Last edited by Ultimate; 03-22-2013 at 07:47 PM..
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Old 03-22-2013, 10:35 PM   #40
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I didn't even notice Tony's chart for the 4 gpm. I did the calculation in my head and must have been off on my math.
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