First of all fluid does not dissappear... It could also be leaking into the transmission bell housing.I had a problem on my CRX similar to this. It ended up being that the throw out bearing and arm were too worn. How many miles? Pull the slave and make sure it is good. It should be quite obvious if it is leaking at the Clutch master either on the firewall or by the clutch pedal where the rod goes through the firewall. Have a buddy just continously pump the clutch and then let us know where the fluid is coming from.

edit: Line7 are you even a mechanic? Don't give out information that you are not sure about. If you run the Clutch slave completely DRY then you should replace both, but not because of "contamination" No fluid = friction on the rubber seals inside the clutch master and slave.