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New Roof Cleaning Pump

Kleen Roof and Exterior Cleaning · Apr 2, 2015

Is it compatible ? Don't have much time this morning to look to see if the polyester (PBT) is SH compatible

RCIA Founder

Kleen Roof and Exterior Cleaning wrote:
Is it compatible ? Don't have much time this morning to look to see if the polyester (PBT) is SH compatible

Be careful, Hypro makes several versions of these, and the bleach one is made from bleach compatible materials NOT Polyester!

http://mkrittenhouse.com/ca/hypro-versa-twin-2130-series-plunger-pump

 it will be a COLD DAY IN HELL, before we would EVER switch from air diaphragm pumps, to anything else :) Our roof cleaning system has been perfected over a 20 year period for OUR Needs (cleaning shingle/tile roofs in Tampa). It is an air based, twin tank system, one for tile, one for shingle, premixed, on flatbed trucks. I know of nothing better, for OUR needs. However, I realize many people just do not have the ROOM for a full blown air system. I see these roof cleaning brothers spending THOUSANDS on these UDOR and other gas powered pumps, or on cheaper, but unreliable 12 volt pumps. Many of these roof cleaners are up north, and have need of a small pump, that will really shoot. It is THESE folks , that I had in mind for these Hypro Plunger Pumps. For around 500.00 (vs nearly 2 grand for a UDOR), a person can now buy a small, bleach resistant Plunger pump, capable of 300 psi! These pumps do not have to have that troublesome pressure switch! You run them just as you would a UDOR, with a pressure regulator, and a bypass line going back into the tank. The motors for these are rated for all the time duty, and actually, once the initial investment is made, they sell complete replacement pump heads, and rebuild kits, making it easy and economical to keep them running! Unlike most positive replacement diaphragm pumps, a plunger pump plays by a different set of rules. A regular 5 gpm Delavan for instance has nearly ZERO FLOW, once pressure is increased! Not so with this little bastard. I think you calculated that there is still 2.6 GPM left,at near 300 psi :) 2.6 gpm, when backed up by nearly 300 psi, should shoot like a motherfunker :) Plus, Plunger Pumps are basically simplicity in and of themselves, besides the seals, there is little to mess up! 

On Paper, vs the UDOR and other Gas Powered Diaphragm Pumps, this little guy looks "weak", because the UDORS have nearly 11 gpm Flow. BUT, that is OPEN FLOW, and at full pressure, that flow drastically DROPS, because that is the nature of the beast. Same if you compare this little guy vs a Fat Boy, it took really takes a HIT in Flow, at full pressure :( Plus, a Fat Boy is only a 60 PSI pump vs 300 in the Hypro Plunger Pump :( The Hypro Plunger Pump will spray circles around ANY Fat Boy :) Plus, it will offer a whole new level of reliability compared to any and all the 12 volt roof cleaning pumps this industry has ever known. Remember, the best pressure switch is NO PRESSURE SWITCH. But when you try to bypass the pressure switch on most 12 volt pumps, the motor can easily overheat, and burn up. In fact, the ONLY 12 volt roof cleaning pump with a no time limit motor I know of is the Northern Tool, and it too, like the Fat Boy, is only capable of 60 psi pressure :( 

GrimeFighters · Premium Member Roof Cleaning Institute of America

So what's the final verdict? Are these worth it?

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