The Roof Cleaning Institute Of America Training & Certification Forum
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Sorry we couldn't talk today. phone was screwing up big time. Call me and we'll discuss this.

 

Look here.

 

 

 

 

http://roofcleaninginstitute.org/index.php?/topic/345-latest-pics-of-my-rig/     read entire thread

GaryW said his air pump was good to over 70,
Do you have a video Gary of the pump in action,

Bill

Hey Gary,..I haven't any doubt a big air pump with a big compressor can shoot 70'. But cleaning 70' feet from the ground effectively is gonna be an issue. Just can't be done properly. At 70' a lift would be used and the job would be done properly,..benefiting the customer and the contractor.

70' across the yard is one thing,..but to reach 70' up the side of a building? You'd have to stand right at the base of the building and shoot straight up,..who cleans that way,Ha,Ha,..

Kinda' like a 24' ladder won't get you 24' feet up,...the angle robs you of height.

@Bill,..if you're gonna be washing buildings,..your 8 GPM is what you want to use,..it will be more beneficial than an air pump. Air pumps are great for roof cleaning and application of strong SH to other surfaces,..but when it comes to rinsing,..you're gonna be throttled at 100-150 PSI max. That will work,...but not as effectively as 8 GPM at 800-1000 PSI. You're still not gonna hurt anything,...because you're not gonna be right on the surface when rinsing anyhow,..but that extra PSI makes a difference when reaching up and removing stubborn debris like bees nests etc...

Most everyone who washed buildings on a regular basis uses a pressure washer rather an air pump. I like this board,..but it is geared for roof cleaning. Go over to ProPowerWash.com and you will find lots of information on cleaning with your 8 GPM machine.

Jeff

Hey Bill,..not even sure how that became a link,..I just typed it in and didn't add it as a link??
Either way though try this one: http://www.propowerwash.com/board/upload/forum.php

Go down the page to "Pressure Washing 210"  and you'll find lots of topics to read up on. 

They also have a roof cleaning section.

Use the search button alot and you'll learn more than you intended.

 

Jeff