Removing Paint w/ a WADU

[Aquaforce]

Had a job today and it was a disaster. I have a 3500psi, 5.5 gpm MITM washer and WADU soda blaster. Tried the Wadu for the first time and my results were not good. The wadu caused the unloader to pulse (?). It waould have pressure for 5 seconds or so and then no pressure for a couple of seconds. It did not scratch the coating on the piece of metal I was trying to clean.

Any thoughts on what would cause the "pulsing"

Thanks,
Jim Mathis

[Aquaforce]

Would a small leak near the gun cause the surge?

[One Tough Pressure]

Your nozzle in the wadu attachment is to small. I would be willing to bet it is a 5 and your machine calls for a 5.5 or a 6. I wouldn't be suprised if you have a flow unloader as well.

[Beth n Rod]

too much air in the line...

Rod~

[Aquaforce]

thanks, I am going to play around with it tomorrow. I am going to try it with my smaller Karcher washer.

[CarolinaProWash]

Nothing like laying your ignorance out in public.......what is a WADU?

Celeste

[squirtgun]

I think a WADU is a soda blasting attachment.

[One Tough Pressure]

You hook it up same as a XJet, but rather than pulling chemical, you use a special mix of baking soda. Less damaging than than sand and easier to clean up.

[Aquaforce]

Took it apart and the nozzle was labeled 2504, I'm guessing this is 25 deg, 040 orificace. Spent a sunny Carolina Saturday working on the rig. At my pump's 5.6 gpm,the 4.0 nozzle = about 7500 psi,I'm guessing this could have something to do with my problem

Originally Posted by CarolinaProWash

Nothing like laying your ignorance out in public.......what is a WADU?

Celeste

www.armex.com They have a good website about the product and uses. Still looking forward to the Carolina Roundtable <g>

[One Tough Pressure]

Do you have a steam valve on your machine? If so, you can bypass some water and get it to work.

[CarolinaProWash]

Originally Posted by Aquaforce

Still looking forward to the Carolina Roundtable <g>

Well when it happens, I would love for you to bring this WADU thing so I can wrap my mind around it's purpose It would be a great additional demo for a round table!

Celeste

[dk34]

Hopefully the paint removal project isn't too large, as removing paint with a Wadu is equivalent to cleaning a vinyl sided home with a toothbrush.

[Jim Carroll]

Check out a Sponge Jet they are really good for that application.

[bforbis]

I have a WADU and used it for various cleaning projects and paint removal. I would first look for any leak in the system that may result in sucking air that would cause the cycling of the unloader.
Next would be the incorrect nozzel size for the flow of your pwasher.

Depending on how large the paint removal job is and the thickness of the paint you could be there a while.... a long while. Also, don't forget that all that soda is left behind and it WILL kill all the greenery at high enough concentrations.

For certain jobs the WADU is a great tool, other jobs not the best

Hope this helps

Brent