Have got a 98 VT and when on a long drive the aircon stops blowing air at any decent volume.

When you stop (after 5 minutes or so) the car drops a lot of water which i've noted is cold (suspect this is condensation) and then it works again until the same thing happens.

Have been told it's the evaporator freezing over and its due to low gas level, have had it regassed but it still has the same problem?

Can get it to last longer if it's not on re-circ and fan is on 2 or 3, but after 2 hours it's the same.

Unsure what to do, it's a pain. kids get hot and bothered, then the wife starts up.....