The best shit around is SNS203 made by sierra natural science. Good luck dude, that stuff will take care of them in minutes. We live in the same county, all the hydro shops carry it now.
I've been hearing this, over and over, from reliable sources. Not just some guy trying to sell me a bottle. I've had root aphids twice over the last 5 years and gotten rid of them with a combination of Merit 75 (Veg), Evergreen (Flower), cleaning, quarantine, hotshot bug bombs (veg), pyrethium bombs (flower) and tears... haha. They are a relentless bug. Treatments were sort of like chemo therapy... I would nearly kill the plant (root system) to kill the bugs, then have to nurse the plant back to healthy.
If they ever come back I am going to try the SNS. The spider mite stuff worked so well, I couldn't believe it. It was just instant, spider mites gone. A hydro shop gave me a sample bottle and that was enough to fix the problem... I was previously fighting spider mites with Azatrol and pyrethium bombs.
From my experience, it is worth your time to stop production and get yourself down to as few plants as possible... Just the plants you want for future mothers... Then clean your rooms and tools very well... treat your remaining plants... when you are confident they are completely gone go ahead and start up the full garden again. If you assume victory to quickly and move forward, you find yourself in the same situation but worse a couple months later.