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  1. h2o spray


    Hi Roger, I grew up in Austin,Texas. Lake Travis/ Lakeway area. Graduated from Lake Travis HS,Go Cavaliers! I left when I was 23 long...long...long time ago. I go back occasionally. Seams as though it would be a great area for good roof cleaners.

  2. Bergman Roof Cleaning


    Just wondering how that tank worked out back in Nov 2013 when you made the project?

    How long did it last? Any problems? Did you feel it was a real benefit?

    I'm just feeling like CRAP today and sittin' here reading old posts.

    Thanks!

    Chuck

     

    Well here is my latest experiment.  It is a hot water tank expansion tank.  Basically an accumulator tank like waxman mentioned in his post.  It holds 2 gallons instead of 1 ltr.  I pressureized it to 50 lbs and installed it just like the accumulator.  I ran about 100 gallons of water through it  with different tips from 40's to 4's with great recycle times.  The only downfall that I can see is that it is metal instead of plastic.  I figure that a good rinse after every use should get me a year.  If so I would be happy.  $39.00 at Lowes.

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  3. I'm running a 1/2 yamada pump on 200ft of 5/8 hose. It's run flawless for the last 1.5 years.  Whats the best pump going right now and why? 

    Welcome to the RCIA Grant !

    Apple Roof Cleaning was basically built on the 1/2 Inch Yamada pump, the black one that's made from Kynar.  However, the last of my "fleet" of 3 Yamada pumps, died a few years ago. Some were rebuilt 4 times! 

    Lately, we have been using the 1/2 Allflow pump, and noticed no drop off in either performance, or longevity. LOL, only time will tell if it is capable of being rebuilt 3 times, like the Yamada.

    Kevin Enderle has actually done flow and distance tests of some air pumps. Some brands of air pumps use less air then others, because they are either more efficient, or the company is lying about the efficiency of their pump!

    As far as "The Very Best" air pump goes, there is a small American pump maker out in California called Price Pumps. They sell their pumps to California Farmers, who have to spray Acid on their soil out there. 

    For a given amount (SCFM) of air, the Price Pumps are claimed to give more GPM. They are built like Tanks, and priced accordingly.

     

     


  4. I would like to see your source to confirm this is fact.  No offense intended to you at all, but roof cleaners and pressure washers seem to repeat everything they hear and read as fact without every really knowing if it's true or not. 

    I used to always post my sources, don't know why I didn't this time. Sometimes, I will Google stuff for hours at a time, to get the answers I seek. I think this is the reason I can't seem to find the source of my claims about the Non Ionic surfactant being the best for our cleaning purposes. The original search terms often change, by clicking on other Google related searches.

    I did uncover either a patent or a scientific paper that found the Non Ionic Surfactant to be best for algae penetration, when used with SH. 

     

  5. Shingle Brite


    Yes, the SH does the work, the soaps help it stick, but only the Non Ionic type of surfactant improves the penetration of the SH into the algae! 

     

    I would like to see your source to confirm this is fact.  No offense intended to you at all, but roof cleaners and pressure washers seem to repeat everything they hear and read as fact without every really knowing if it's true or not.