Quote:
Originally Posted by Pazuzu
Yes, one could take a used receiver dryer, put in into a bell jar, pull a hard vacuum, then heat the whole thing to 150 degrees for a few hours, and you might recover the silica enough to be useful, but for the $20-50, WHY would you?
|
Exactly. The expended time and effort in order to revive a spent receiver-drier isn't worth it. Even the most expensive R-D cartridges are stupid-cheap in comparison to a vacuum oven. You could buy 20 or more receiver-drier cartridges for the cost of a used vacuum oven. And the time and effort spent to do it...
wwest doesn't understand the principles behind working with vacuum, let alone the physical aspects of the vacuum pumps themselves. Hydrated crystals are not just water molecules stuck to a surface, waiting for a pressure drop to come off - a chemical reaction has occurred there. It takes significant energy input to reverse the reaction.
Better to just buy a new RD.