Our clubs compressor ( Compair Reavell ) has a timed blow down on it to purge all the nasties, it is adjustable from about 6miutes to 60 miunte intervals .But it doesn't work

Is there anything on the market that I could use instead that would do the same job ? that could be fitted after market so to speak .Otherwise I'll just have to stand there & unplug the lead every 20minutes & then plug it back in !
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Colin
I trust my rebreather completely ,
I just don't trust the user
onwards & downwards