PC water cooling system uses swimming pool for reservoir

These intrepid PC builders decided to convert their machines to water-cooled, ripping out the fans — and for water, they used an entire nearby swimming pool, hooking up a pump that circulates cool pool-water through their PCs and back into the pool. Thus, they get "quieter, cooler" computers and a warmer pool.

Cooler, quieter computers and [possibly] warmer pool water with very little extra cost and added energy savings…

This is the plumbing around the pool without modification. We can see where there are two returns on this corner from the filter pump.

Next, we insert a check valve into the system. This has no affect on the operation of the filter pump but it will come in handy later.

Water for the cooling system will be drawn in from the upstream side of the check valve and returned after the output of the check valve. This ensures that even when the filter pump is turned off, fresh pool water is drawn in and returned to different areas of the pool.

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(via Digg)