21 Nov
2005
21 Nov
'05
8:55 p.m.
On 11/16/05, Chuck Guzis <cclist at sydex.com> wrote:
I can't ever remember seeing a water leak in the
machine room. The Bryant
6603 disks (and one very memorable 808 drive) would leak hydraulic fluid,
however. Made a terrible mess.
I've avoided the potential leak hazard by keeping the water systems
underpressured at the computer. I've got a pump that can push water 10 ft
vertical that's located about 15 feet below the computer. If I get a leak
more than 10ft above the pump, it sucks air in rather than squirting out
water. A slow leak shows up as bubbles in a clear section of the hose (and
as bubbles in the reservoir, since the surface tension reducer is soapy).
The drawbacks of this system are that you need to prime it, and that a bad
enough leak will disrupt the coolant flow, so you need to monitor the flow
rate or have a decent thermal shutdown mechanism. You need that in case of
pump failure, anyway.
Eric