Ok, I realize from lurking that many things have been tried for cooling the water, but I am wondering about the crawl space under this house.......

I put the outdoor probe of a general househould indoor/outdoor thermometer into the crawlspace. The Thermometer is probably accurate to +/- 1C=~2F. The temp in the crawlspace was 16.6C/62F--ambient in this room was 26.6C/80F. It dropped to about 13.8C/57F, before the sun went down.

I am thinking about this for the pc below:

E8400
Asus P5E-VM HDMI
Crucial Ballistix 4x 1GB PC6400 800 w/ OCZ XTC cooler
2x Seagate 500g 32mb sata
Asus 8800GT

Current WCing:

Swifty MCR-220 rad w/ 4x 120mm fans push/pull (~74cfm each)
Apogee GT--cpu
MCW30--NB
Single 5.25 bay Res
MCP350 DDC
3/8" ID Primochill tubing

Res>Pump>CPU>NB>Rad>Res

What I am thinking is probably pretty obvious to most of you.

Would it be worth while to connect into the current setup (quick disconnects), run tubing into the crawlspace to a MCR320 with 6 fans in push/pull? Yes, I would need another pump--that gets into the whole 2 pumps in one loop situation.....I've read the threads and I understand what's said, but this situation is a bit different.

I'm looking for ideas to make this work, or issues as to why it won't work (2 pumps, etc), isn't worth while, etc......