I have a closed loop cooling system on my cpu right now, and I want to water cool both the cpu and gpu. The closed loop has a combination reservoir/radiator/pump and a cpu block. I don't know what type of metal the reservoir is, but if that's not an issue can I use these pieces with a new loop? I'm going to get at least one more rad and a dedicated reservoir and pump if I need to, as well as a gpu block obviously.