Cleaning Cars with Pure Water

What is the gpm output of the xero pure RO/DI system?

I have a 16ft trailer with the front 8ft is a box and the back 8 is an open bed where my pressure washer and 200 gal buffer tank is mounted along with my Xero pure RO/DI system and multiple hose reels. Currently my Xero pure is plumbed to draw off the bottom dump valve via a 3/4" braided PVC hose that runs through a 7gpm 12v on demand pump which forces the water through the carbon, RO, and DI filters before running through another 3/4" line to a 200ft hose reel, half is 3/8" air hose, the other half is Xero hose.

If the output of the regular Xero Pure RO/DI system is high enough I could figure out how to re-route the water supply line to bypass the tank, run through the Xero Pure, and then dump back into the tank for the pressure washer to run off of.