Cold water machine

[pooltilelikenew]

I need to buy a cold water machine that is 4GPM @ 3500PSI for soda blasting. I currently have a machine that I have been borrowing from a friend. It is a slightly lower rating and has a 11HP Honda. I have looked at a machine down here where I live and is what I need but it only has a 9HP Vanguard. The sales guy says that the 9HP Vanguard is equvilent to a 13HP Honda. This does not sound right. Is the 9HP enough to run the 4GPM 3500PSI machine or should I be looking at a 13HP motor with this rating?

 

[Larry B]

What the salesman means is he gets a better commision on the vanguard. I am not sure how 9hp is equal to 13 hp no matter what brand engine it is. It only seems logical that if briggs engine produced 13hp they would prouldly put it on the side of the machine.
A simple formula is gpm x psi divided by 1100. 4 x 3500= 14000/ 1100 = 12.72hp required to achive the full output of the pump.
Keep shopping around and check the board sponsors or look on the net for a Honada if there is not one available locally. Do a board search on Honda vs. vangaurd and you will see that Honda is more popular.

 

[Russ Johnson]

Yeah, and I can replace the LT1 - 350 in my Impala with a 4.3 - V6 and it will run fine. Sheesh! This guy ought to be selling used cars on the buy here, pay here lot rather than pressure washers.

 

[Hotwaterwizard]

hmmmmmmmmm Missing 4 horses!
A Horse is a Horse and 4 less is 4 less no matter how you look at it!\
If there were a difference like Electric compared to Gas then there would be a difference in horsepower or diesel engine compared to gas.
Electric Horsepower
Gas Horsepower
Diesel Horsepower
are different in comparison to eachother.
Efficency is the key
Electric is the Clydesdale
Diesel is the Mule
Gas is the Arabian

 

[Steve Wilson]

For Soda Blasting you really should be looking at least a minimum of 13hp. The reason is that we have 4 units that connect up to 4 Wadu units from Armex & if you are constantly using them I would recommend minimum of 13hp. When we started out 11 years ago we thought we could get by with 11hp in conjunction with Soda Blasting but it just didn't cut the mustard. Depending on pump output we found we could only get a maximum of 2,500psi. Pumps have been upgraded over the years but we found the bigger the better.

 

[Hotwaterwizard]

Talk to David Saulque in the Vent Cleaning section. He is an Expert on Soda Blasting

 

[David Saulque]

I use a dry soda system-I have never used the Wadu wet system. Sorry. The dry system works off a 185 CFM compresor and it will rip all types of dry hard work issues.

 

[Dave Olson]

We use a #6 tip in our Wadu gun @ 3000 psi. We have tried smaller tips and they just didn't work that well (much slower). By the way a #6 tip @ 3000 according to the tip chart puts out 5.2 gpm.

Here is a picture of a test that we did on a brick building a few years ago.

Dave Olson