I have had the Earthquake 1/2" air machine for a while now.
It is a great tool.
But, I got to play with our 15 pound Soda Blaster yesterday.
I bought it a while ago and have since reworked some of the cheap and crappy air lines they put on it.
I purchased a few fittings and a short 15 foot air hose to make it better.
I have to say it works quite well now.
But, on light parts and light crud.
It is no sand blaster and doesn't remove heavy crap.
But that is not what it is for.
I have a set of intake manifolds for a VW engine and they were crusty to say something nice about them.
Since I have had this thing, I have been telling
@Maxwellvis to keep his eyes peeled for a free barbeque on the side of the road. He found one last month that makes an excellent blasting cabinet.
The powder gets everywhere first of all.
Wear a mask and you are golden.
It did an wonderful job on cleaning most all of the crud off these intakes.
Once we got past the air line garbage, I will give it a good review.
Works like it should.
Although filling it takes a bit of time as it fills through the neck which is about a 1/2" ID hole.
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