Hall of shame.

[Andy T]

LOL, that is hilarious.

I can't work out four things.Why the gauges was freezing up.How you can reclaim gas into a Refrigerant bottle of R22,past the built in none return valve.why your tutor was using R22 after Dec 09.unless it was a recovered R22 from site.the only cost is for disposal of the now mixed refrigerant at about £10/Kg + cost of wasted R401A .The R22 should be returned anyway by now.