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Russ Spence wrote:

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Chris the head is the same, it does produce more volume but it actuall just gets the specs that the 5800 was supposed to get but does not I did a test yesterday and it gets about 5.5 to 6 gal a min at 60 psi with a 2530 tip and 250 feet of 5/8 hose.

So I am not too impressedb but it is better because the pump does not have to be over worked to get the volume that I wanted out od the old smaller pump so I guess we will try to get back to roof cleaning in Montgomery Alabama with this new one and see how it does

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I figured they would use the OLD, proven roof cleaning pump head.
Pressure is all about the motor.
They went to a bigger motor, a wise thing IMHO.
Mel from Vero Under Pressure went to the big Kohler motor on his pressure washer.
The big Kohler makes tons of torque at lower RPM's then the Honda.
Mel told me it was like getting a new pump!
Cooling Fins can be helpful on 12 volt motors.
Wonder if Delavan will make them an option on their roof cleaning pumps.
I had them back in the day on my Dual Shurflo's.
 

Gulf Side wrote:

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Hey Guys,

I'm Ryan.....Newbie to RCIA here. lol

Has anyone had a chance to use the new "Bobcat" that Bob put out?

I really need to get away from drawing from batteries and this one looks like it would be real solid being that it is the Delavan 5800 head.

Wonder if the 7800 head could be fitted with it instead???
That would be cool!

Also, does anyone use the Zeta by Udor.
I planned to get a 40P after the first of the year but it would be interesting to hear reviews on it.

Thanks




-- Edited by Gulf Side at 02:09, 2008-12-08

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Welcome to RCIA Ryan!
Chris from Apple Roof Cleaning in Tampa here.
The Udor and John Blue Pumps, and the Comet Pumps, and the Hypro roof cleaning pumps are all made in Northern Italy.
They all "work" for roof cleaning, but fail too often for our use.
I used the Udor Pumps, had 3 of them.
Still have one in pieces in my shed.
The PROBLEM with them for roof cleaning use is this.
They have stainless steel valves and springs.'
Stainless sucks for roof cleaning use, only having a "C" rating for SHC use.
And THIN stainless steel, as used in valve springs REALLY sucks.
The springs will break, and the pumps are a nightmare to rebuild.
Then, the Poly Manifolds leak.
My advice ?
STAY AWAY

The Bobcats and Fat Boy's look lnteresting.
If it were me, I would take a Bobcat, and simply replace the heads at low cost when they fail.
And they WILL Fail, bet on it.
No "roof cleaning pump" is forever my Son.
They are ALL "living on borrowed time".
Some just die sooner then others.

Always remember that your roof cleaning pump, whatever it is, is living on borrowed time.
Thus, you must make life easy on it,  just as you open doors for little old ladies.
You do this by using the BIGGEST diameter, and shortest length of Hose you can for roof cleaning use.
Welcome here Ryan, this roof cleaning forum is moving up on Google quickly!
I would take some before and after roof cleaning pictures, and post them in the picture section of this forum if I were you.
Use the tags so they show up in whatever Pinellas County Roof Cleaning Search you do.
This way, potential roof cleaning customers on your side of Tampa Bay may see your work ?
If I can ever help you, just ask ?
Chris

Gulf Side wrote:

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Thanks Chris,

Thats disappointing about the Zeta. I had high hopes for that one.
Yeah, I probably will try out the Bobcat but I still want to find a pump for a 3/4 shaft gas motor that can do a higher volume and PSI. Mabe I'll just have to go roller...

 

Thanks for the heads up!

 

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Rollers dont last long either, but they are cheap, and easily replaced.
I once used a 4 roller hypro for roof cleaning, replaced it every month.
Hey, I bought a case of 12 roller pumps for 65.00 each!
If I cleaned 45 roofs with one pump, I did not shed a tear.
Cost of doing roof cleaning business ya know ?

Mike Sullivan wrote:

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The FATBOY 7gpm pump needs LARGE nozzles and hose
#30 nozzles and 5/8" hose are too small, and are meant for the old 5gpm pump.

Using the #30 nozzle causes the 7gpm pump to max out at 25amps draw and will choke it, running at half speed. These nozzles will quickly kill your pump from excess amperage draw and overheating.

#40 works better but it is still maxing the pump out at 25amps, and chokes your flow running at only 2.5gpm.

Use at least #50 nozzles. This is the smallest nozzle you should use for the new FATBOY. Pump will run much smoother and shoot farther than the old 5gpm pump without maxing the pump out.
Pump performs at 80psi 4gpm drawing 21amps.

#60 nozzles also work well to give you more flow and good distance. Pump runs better than the #50 nozzle but does not give you as much pressure/distance (but it is still good).
Pumps performs at 60psi 5gpm drawing 17amps.

Use 3/8" barbs for 40psi 6gpm drawing 13amps.

Use 3/4" hose for the 7gpm FATBOY.



-- Edited by Mike Sullivan at 13:06, 2008-12-21

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Thanks Mike for the roof cleaning pump information.
Your research confirms that big hose not only sprays better, it makes life easier on any roof cleaning pump.