So I'm trying to make a basic go-no go decision on straight air cooling, an AIO water cooler for just the CPU, or a full loop. Maybe also cool the VRMs. About 7-8 years ago, I thought that I would do a full loop, but then "time passed." I know that this is a n00b question, but that's what I am for water-cooling. I have been building systems for at least 20 years now., Given some health issues, I'm a bit concerned about how much heavier a full loop would be, compared with a nice fan/heatink like the CoolerMaster 212. https://www.amazon.com/Cooler-Master-Hyper-Direct-Contact/dp/B005O65JXI How much does a full loop with a typical D5 pump, CPU and GPU blocks, reservoir all weigh empty? Assume soft tubing if that makes a difference. Did I leave anything out? How many gallons (or liters) of coolant, assuming a full-tower case with the components arranged so that everything can be drained out with a drain port at the bottom of the loop?