sticky cltch pdle Help

[leo's dad]

If I hold the beast in gear with my foot on the clutch eg hill starts, or when reversing the pedal goes to the floor and I can't get her out of gear unless I stall it. If I Keep driving I need to get my toe under the pedal and flip it back up again. As long as Im driving and changes are quick ish there's no probs and the pedal comes back into place unless I have to keep the pedal down for more than a couple of seconds then i need the ol twinkle toes in action.
I'm guessing that fluid is getting past old seals but I dont know if its th master or slave cylinder and Im only guessing. Anyone got any advice before I wipe out half a car park
Cheers All

[TonyN]

Its normally the master cylinder, the seals flip over when worn and hold the piston in.