Soda Blasting Vacuum System

[r6100mph]

So I just bought an 80 gal 5hp CH compressor 1-stage, but now I'm looking into a vacuum system.

I have been looking at TP tools systems.

http://www.tptools.com/p/2322,52_Vac-35-Vacuum-System.html

http://www.tptools.com/p/2324,52_Vac-36-Vacuum-System.html

Are there any other companies out there that have vac systems?

I like the price of the "Vac-35" system, but I'm not sure if it's a 3-stage hepa system like the Vac-36.

Anyone have any suggestions, or personal experience?

I'll be using soley blasting soda (sodium bicarbonate) and cleaning up motorcycle parts, engine cases, heads, some hardware, maybe other parts but 99% motorcycle stuff.

Right now, I'm using my shop vac which is working pretty good, but I have to clean the filter pretty much before every use, and replace the bag at least every 2 uses. It does a very good job of containing the dust, but would like something more specific for this application.

I have thought about using a "water filter"

Bascially a bucket of water between the cabinet and vacuum to act as a "pre-filter" before the finer dust gets into the vac.

Has anyone had experience with the water filter?

Thanks in advance!