Hey guys, I'm a little bored sitting at my folks place. It's freezing outside, and we currently have a corrugated water tank that is overflowing and it's not being used. We also have an old spare pump, and I've got an old prescott sitting around. So I thought, why not hook it up to the tank with 5,000 litres of water. How well would that work if I set it up with a block and used a household pump to pump the water through? Would that move the water too quick for heat transference? I'm only thinking about it cause I'm bored, and I wanna see how high I can clock it (and how many volts). haha Currently, the tank is sitting at -3 overnight and gets to about 5-8 degrees during the day (with the ambient temp sitting at about 7 degrees usually). The tank has an inlet/outlet. Outlet is an inch, inlet is 1/2 inch originally designed as a gravity fed tank. Could I get away with not using a pump? Could it move enough water without requiring a pump? What is the largest inlet/outlet you can get on a CPU block? I'm also considering boring a hole through a massive block of steel and threading an inlet/outlet so that I could have water pass straight through. But again, was concerned with the heat transference. I've got practically everything except a block. Got plenty of piping etc. I wouldn't need a radiator, as it'd feed straight from the tank then straight back in (pulling from the bottom expelling at the top). Hosing would be less than 2 metres one way. Thoughts?