I just spent a few minutes reading the archives on this
topic but my question was not answered (not that I could
find).

I knew that my slave cylinder was going - I could see
drips and the rubber boot squished when squeezed. I
made an appointment with my trusted mechanic for
today, but when I got in the van, the clutch pedal just
went to the floor with no resistance.

This afternoon I have put 1 & 3/4 bottles of DOT4
brake/clutch fluid (at CDN$12/bottle) through the front
reservoir in an attempt to bleed the clutch slave cylinder.
Each time I open the bleed screw, I get some air out of it
(like a wet fart), but after nearly 2 bottles of the stuff - still
no clutch action from the slave cylinder.

Background info:  Brakes work OK and were bleed last
year.  The fluid reservoir (up front) was nearly empty when
I first tried the clutch.  I see no leaks up under the master
cylinder.

How much fluid should it take to bleed the clutch slave
cylinder??????    Thanks,  Malcolm