K6CCC
Captain
Flight distance : 651683 ft
United States
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Porktree Posted at 11-23 13:07
LOL - the bag of rice is a not something that actually works. An alcohol bath works best, pulls the water out. Ether is also ok, but is a solvent, so use sparingly.
Mixed results according to others on the rice, but here is my alcohol bath story...
20 years or so ago I was working for a large electric utility that had one of the largest Motorola trunked two way radio systems in the world. I managed that radio system. In a major storm part of the roof on one of the mountaintop radio sites blew off. This let a large amount of rain into the building where it filtered through 50 years of dust and dirt in the ceiling insulation and then poured onto the central controller for that radio site - killing it. This was on a Sunday afternoon. Several of us got to the site and assessed the problem. Most of the control cards had been drenched with this filthy water while energized with 48 volts of DC power. There was large amounts of gunk, corrosion, other assorted crud on close to 100 different printed circuit boards - far more than we had spare parts for.
So we sent one of the guys down to a local grocery store to buy several large disposable roasting pans, some toothbrushes and as much isopropyl alcohol as they had. The three of us spent the next 8 hours taking control cards (some as much as $10,000 each), and plunging them into a pan of alcohol, and scrubbing them with toothbrushes to get them clean, and then letting them air dry. About 0100 Monday morning, we had the radio site partially operational, and by about 0500, it was as fully operational as we wanted it at the time.
Alcohol works!
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