Question on what to put in A/C condenser unit to clean out drip line...

Me and my friends use the strips and tablets all the time. Some of the manufacturers produce strips that contain a rubbery compound covered with woven Nylon or polyester that looks something like a sock. The strips are installed in the bottom of the condensate pan as far from the drain as you can get it, the strip will last longer because it's not under water and won't block the drain. The tiny amount of chemical leaching from the pad/strip is all that's needed to keep the condensate flowing through the trap and drain line. It's also effective if your system has an electric condensate pump.

TDD

Most of the time, condensor units don't have a drip line. What kind of AC is this?

It was originally a throw-together out of spare parts by the guy who lived here, who happened to sell and install A/C units. It has since been revamped and reworked, but I have no idea who's brand name it is. The house was a fixer-upper when we bought it, and we spent the first five years undoing what everybody else had been done to it. Now it's livable, and we are not halfway through yet.

Dave

I wouldn't worry about the bleach damaging the drip line. After all, it is sold in plastic bottles.

Good point. :)