My slave cylinder just replaced but the bum mechanic said it was ready. I start

What is your question?

Driving off and couldn't at first cause no clutch pedal but I pumped clutch and had pedal for a day or 2 then clutch went away again. Would it be a blockage problem cause I tried to bleed with bleeder valve underneath but no fluid/air bleeding where it suppose to escape (opening between bellhousing and trans .....???????