Sorry I should have called it NiCop. That's what I was thinking of. Here are the check valves I bought:
https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1
Here is the booster:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I will definitelycheck out the remote reservoirs.
I was wrong on calling the valves proportioning valves, the valves I bought are check valves
Thank you very much for the help.