Here's one for those that like a challenge. Has anyone figured out a way to clean the inside surfaces of a double glazed unit (one that's failed and has condensation streaks on the inside). I know that even if you could, it wouldn't have the insulation properties of a functioning unit and the obvious answer is to replace it but problems like this challenge my intellect and I'll stay on it like a mad scientist. Incidentely why do double glazed units always fail five minutes after the guarantee has expired?
Its usually the units that are in sunlight alot of the time that break down first, it's just bad luck and happens now and again. The only solution is a replacement unit, You will find they are not that expensive to buy, its usually the labor that bumps up the cost.