Although entertaining, I never take Cheez threads seriously.
Problem: Old PC makes too much noise when playing HD content.
The Cheez Solution: Buy waterblocks for the old hardware. Pipe water from a constantly filled bathtub in the house.
The Logical Solution: Replace PC with low power cost effective parts good for HD content.
But the software only works with the old hardware /rolls eyes
Adam, read what YamTomato said. He explained it clearly. Adam you joined the game too late. Perhaps read all posts in this thread to find out what's going on and why I went with the bathtub cooling.
Guys, it's been running fine with the new pump. It's been 1 month, pump running 24/7, constant service. System stays running 24/7 so the capacitors get warmed up and optimize themselves for improved sound.
The water flow looks good and I don't see anything building up in the tubing. The tubing has been used for over 2 months now. Guys, stop worrying about the build up. There is no build up. Plus I have many years of experience with this as explained before. And if the pump fails, I will report. It's a promise.

I am not trying to prove anyone that this pump is the best solution. I am doing this as an experiment. If it lasts forever, good! if not, oh well. Get a different pump!
The ONLY problem I am having is the vibration and noise caused by the pump. Even with the sponge foam placed under the pump it still makes vibration and noise as it is touching the bottom of the tub. The noise transfers to the wall, and other side of the room, my living room so I can still hear the noise. Another problem is my power supply that's mounted on top of my wine cooler cabinet is making fan noise (defective fan / bearing). It's really annoying, both PSU fan and pump vibration. I am totally broke to buy anything right now. I wish I had the fanless power supply.
As for the pump, I need to come up with better ideas. It needs to be lifted from the tub so that it won't touch the bottom of the tub causing vibration. I need get something that can be mounted above the tub, run a string down to the pump and tie it.
My full size Listerine plastic bottle is getting close to empty. I could use this to float on the water. Run the string down to the pump. This might work, but it will look unprofessional don't you think??
Another option is to get a Pirate ship. It's expensive though, $85 or something?:\
I could use that anchor on the ship tie it with a string and run it down to the pump so it can be lifted. This may be a great idea. But I don't have $85. I just spent money on a Panasonic Lumix LX7 camera. Now I'm broke...
cheez