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Post Info TOPIC: Dual Delavans


RCIA Founder

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Date: Nov 17, 2008
RE: Dual Delavans
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Why not TWO Roof Cleaning Pumps Mike, the BIG Delevans ?


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Apple Roof Cleaning Tampa Florida

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813 655 8777

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Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

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Date: Nov 17, 2008
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I will! DUAL FATBOYS is going to be DA BOMB!!!!!!

-- Edited by Mike Sullivan at 14:18, 2008-11-17

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Premium Member Roof Cleaning Institute Of America Certified Roof Cleaning Specialist-MODERATOR

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Date: Nov 17, 2008
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Apple Roof Cleaning wrote:

Larry wrote:

Interesting thread. I'm sick of replacing my sureflow. Just finished up a job on Friday and noticed a decrease in PSI. Went and checked the pump and sure enough. Leaking all around the housing. AAAARRRRG! I just put this pump on the begining of Sept. Yea I have used the heck out of it but 2 months later and she's dead? I rinse the heck out of it after every job. Maybe if I stop taking care of them they will work longer. LOL



WHAT happened to the Delavan you won from the Florida Drawing Larry ?

Chris, I found out real fast that you can't pull 9 amps all the way from your truck battery like I do with the sureflows. Sureflows max out at 6 and work fine the way I power it... Needless to say that the Delavan is deceased!







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All Surface Roof Cleaning
Largo FL

(727) 543-3276
Roof Cleaning Video
Tile Roof Cleaning�Palm Harbor�Florida
Larry Millette
 Roof Cleaning & Pressure Washing Florida.

  Roof Cleaners Clearwater, Pressure Washers Florida  Roof Cleaners Saint, Petersburg FL 



RCIA Founder

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Date: Nov 17, 2008
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Wire size determines max amperage carried.
You can get by with a Shurflow with smaller wire size and length.
Delevans like large diameter wire, as short as possible.
RIP Delavan.biggrin

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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



Guest

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Date: Nov 18, 2008
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Mike Sullivan wrote:

Confident Roof Cleaning wrote:

Here's a picture of it set up.



http://delavanagpumps.com/powerflo/fatboy.htm


DANG!!!! That pump looks bad aZZ!! HOLY SCHNIKEESE!!


DAMN I GOTTA GET ME TWO OF THESE!!!




-- Edited by Mike Sullivan at 14:06, 2008-11-17

OK, I have to get one of those bad boys to biggrin. How much do they run? They did not show the price.



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Brick City Power Washing
Jeff Jones/owner operator
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Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

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Date: Nov 18, 2008
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Call Bob @ www.pressuretek.com

He'll drop ship them to you directly from Delavan for $229.

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Date: Nov 18, 2008
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Apple Roof Cleaning wrote:

Wire size determines max amperage carried.
You can get by with a Shurflow with smaller wire size and length.
Delevans like large diameter wire, as short as possible.
RIP Delavan.biggrin



Larry, now I see why your Delavan is dead. Like Chris says upgrade your wire and keep them short.

Use a separate good, strong car battery and 10 gauge wire.

I use a 770CCA/950CA car battery.

My 20hp pressure washer has an electric start w/voltage regulator/rectifier to keep the battery charged, so I can run my pressure washer and my 12V Delavans off the same battery.



-- Edited by Mike Sullivan at 11:54, 2008-11-18

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RCIA Founder

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Date: Nov 22, 2008
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Mike Sullivan wrote:

Apple Roof Cleaning wrote:

Wire size determines max amperage carried.
You can get by with a Shurflow with smaller wire size and length.
Delevans like large diameter wire, as short as possible.
RIP Delavan.biggrin



Larry, now I see why your Delavan is dead. Like Chris says upgrade your wire and keep them short.

Use a separate good, strong car battery and 10 gauge wire.

I use a 770CCA/950CA car battery.

My 20hp pressure washer has an electric start w/voltage regulator/rectifier to keep the battery charged, so I can run my pressure washer and my 12V Delavans off the same battery.



-- Edited by Mike Sullivan at 11:54, 2008-11-18



My Kid has a Ford Explorer with dual 15 inch woofers in a huge box.
Each wooofer has a 2000 watt amp on it!
He uses 4 gage wire, with dual batterys, and an oversized Alternator.
He also has huge StorageCapacitors on each Battery.
His lights STILL go dim when the bass hits, LOL
Trollling Motors draw a lot of amps.
Maybe the answer is a HUGE deep Cycle Marine batter you charge every night ?
This is what I used to run the Dual Shurflo's that built Apple Roof Cleaning Tampa.
I recharged every night, well I forot to a few times, and it was still OK



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



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Date: Nov 22, 2008
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Just ordered a "Fat Boy" Delavan, I will let you know, specs say it has a max psi of 150 so I will guess and say at 150 you will still get around 5 to 5.5 gpm

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Russ Spence -Owner
Prokleen Roof Cleaning Alabama
Roof Cleaning Fairhope, Daphne, Spanish Fort, Gulf Shores and Orange Beach Alabama
Call 251-222-3011

 



RCIA Founder

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Date: Nov 23, 2008
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Russ Spence wrote:

Just ordered a "Fat Boy" Delavan, I will let you know, specs say it has a max psi of 150 so I will guess and say at 150 you will still get around 5 to 5.5 gpm



Use some big azz wire Russ, and let us all know about that new roof cleaning pump ?



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



Premium Member Roof Cleaning Institute Of America Certified Roof Cleaning Specialist-MODERATOR

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Date: Nov 23, 2008
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I'm real curious to hear how the Fat Boy is gonna work as well. Please post your results Russ.

__________________

All Surface Roof Cleaning
Largo FL

(727) 543-3276
Roof Cleaning Video
Tile Roof Cleaning�Palm Harbor�Florida
Larry Millette
 Roof Cleaning & Pressure Washing Florida.

  Roof Cleaners Clearwater, Pressure Washers Florida  Roof Cleaners Saint, Petersburg FL 



Guest

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Date: Nov 23, 2008
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I still have a 5.3 gpm (delavan)and a 3.4 (shurflo) I am going to do some side by side comparisons with them against the fatboy

-- Edited by Russ Spence at 09:23, 2008-11-23

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Russ Spence -Owner
Prokleen Roof Cleaning Alabama
Roof Cleaning Fairhope, Daphne, Spanish Fort, Gulf Shores and Orange Beach Alabama
Call 251-222-3011

 



Guest

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Date: Nov 23, 2008
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The Fatboy is going to murder your other Delavan and Shurflo. The thing pumps like a champ. If I had to compare it, I would say it pumps about 90% what the Bandit does, and for a little 12v thats awesome.

The problem I had was it keeps blowing fuses, and the relay switch kept melting on the inside from getting to hot, and when that goes bad, the on demand function doesnt work and it explodes hoses. Get a couple of extra relay switches, and solder the grounding wire on, where it is on the one that comes with the pump.

Once you get it and get it all set up, please let me know what you use to hook it up. Wire gauge, fuse size, how far it is from the battery etc...Because I can't figure out why I blow the fuses.

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RCIA Founder

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Date: Nov 23, 2008
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I never used a "Bandit" per say, but I have used all kinds of roller pumps over the years.
My experience with them for roof cleaning chemical is this.
They spray the roof cleaning chemical really good, when they are new.
Then, the roof cleaningchemical eats away at the inner chamber of the pump.
This causes an uneven "pitting/rusting" chemical reaction thatthen effects both flow and pressure.
This is because the rollers no longer "seal" up against the roller pumps inner chamber like they did before the roof cleaning chemical attacked it.
My best "Luck" with roller pumps was with the cheapHypro cast iron with the rubber rollers.
It seems the rubber was better able to "seal" against the rusted, pitted chamber.
Plus, when the pump locked up, the rollers would not break as easily as the "Super Rollers.
The new fat Boy Delevan is not a roller pump, it is a diapraghm pump.
It looks very interesting.
Time will tell us more things about it, as design flaws as to its roof cleaning use reveal themselves.



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



RCIA Founder

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Date: Nov 23, 2008
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Confident Roof Cleaning wrote:

The Fatboy is going to murder your other Delavan and Shurflo. The thing pumps like a champ. If I had to compare it, I would say it pumps about 90% what the Bandit does, and for a little 12v thats awesome.

The problem I had was it keeps blowing fuses, and the relay switch kept melting on the inside from getting to hot, and when that goes bad, the on demand function doesnt work and it explodes hoses. Get a couple of extra relay switches, and solder the grounding wire on, where it is on the one that comes with the pump.

Once you get it and get it all set up, please let me know what you use to hook it up. Wire gauge, fuse size, how far it is from the battery etc...Because I can't figure out why I blow the fuses.



Oh, I forgot to add, the other way around the bypass switch is to get a non switched manual bypass model, just like a bandit.
Bypass back into the tank, so when the switch blows, it wont blow hoses anymore ?



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

Status: Offline
Posts: 1247
Date: Nov 25, 2008
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Confident Roof Cleaning wrote:

The Fatboy is going to murder your other Delavan and Shurflo. The thing pumps like a champ. If I had to compare it, I would say it pumps about 90% what the Bandit does, and for a little 12v thats awesome.

The problem I had was it keeps blowing fuses, and the relay switch kept melting on the inside from getting to hot, and when that goes bad, the on demand function doesnt work and it explodes hoses. Get a couple of extra relay switches, and solder the grounding wire on, where it is on the one that comes with the pump.

Once you get it and get it all set up, please let me know what you use to hook it up. Wire gauge, fuse size, how far it is from the battery etc...Because I can't figure out why I blow the fuses.



When I receive my FATBOYS I have decided to plumb them together but not on the same switch like I had my 5gpm 60psi Delavans.

They will be on separate switches and if I run them together, I will run them through two 3/4" hoses separately with two guys. The only time I will run them together through one hose is for filling up my chemical tanks with no nozzles, just open flow.

This way they will not be running at maximum pressure. If I keep them running at 60psi or less, they won't draw as much amps, saving them from overheating, blowing fuses, and killing the battery.

I will use large nozzles, #50 at least, #60 maybe, 1/4" barbs, or 3/8" barbs. I'll experiment to see which one gives me good distance w/o putting too much strain on the pump.

I ordered 8 gauge wire and 3/4" poly quick couplings to change out my 3/4" stainless steel hose reel swivel (which is getting rusty)

I can not see using any hose smaller than 3/4" for a pump that pushes this much volume, 1/2" or 5/8" would cause the pump to draw more amps and raise the pressure beyond 60psi, decreasing it's life.

Of course, this is all in theory, according to the performance chart. I won't know until I actually use them.

Performance of the NEW 12V Delavan 7gpm FATBOY pump


7870/7970
PSI
GPM
Amps
10
7.0
11
20
6.81
12
40
5.96
13
60
4.98
17
80
3.96
21
100
2.55
25




-- Edited by Mike Sullivan at 19:52, 2008-11-25

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RCIA Founder

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Posts: 7919
Date: Nov 25, 2008
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Roof Cleaning Pumps are a very interesting subject I have studied throughout my roof cleaning carreer.
The Dual Delavan Fat BoyRoof Cleaning Pumps look good Mike, and I know you will honestly report back to us roof cleaners as to you experiences cleaning roofs with them.
I very much LIKE the 3/4 Hose idea, less pressure, and thus less amp draw on the system.
The MORE amps, the more heat, the faster the motor heats up.
Off topic, I can't suggest the RED Kurri Tech hose for roof cleaning use any longer.
Ours kinks easily, and out of 300 feet, we only have about 225 left.
It got caught on a tile roof flashing, and cut it all up.
Love was everywhere, LOL
Might go back to Goodyear Plyvit, or Ag Hose.
Ag Hose is "the best", roof cleaning hosebut it is stiff as hell when new.
The RED Kurri Tech Roof Cleaning Hose is the lowest PSI rated of all the Kurri Techs.
Maybe the higher PSI Rated would be better, as far as kink resistance ?

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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

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Date: Nov 25, 2008
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I have the 3/4" blue Kuritec hose 200psi. How much PSI is the Red hose?

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RCIA Founder

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Date: Nov 25, 2008
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Mike Sullivan wrote:

I have the 3/4" blue Kuritec hose 200psi. How much PSI is the Red hose?



I do not know off hand, maybe 175 or 150 ?



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 



Guest

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Posts: 110
Date: Dec 2, 2008
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Got tthe Delavan Fatboy hooked up and this is my oponion, it is basically a better design, the old pump could not produce enough psi w/o cranking it up all the way, this one will do the same with more volume w/o touching the set screw

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Russ Spence -Owner
Prokleen Roof Cleaning Alabama
Roof Cleaning Fairhope, Daphne, Spanish Fort, Gulf Shores and Orange Beach Alabama
Call 251-222-3011

 

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