For most Florida homeowners, a clogged AC condensate line is a problem they'll likely encounter. According to experts in the industry, most clogs occur when the moisture/condensation that drips from your cooled evaporator coil deposits dirt, debris and other airborne particles into your air handler's condensate drain. These dirt and airborne particles eventually develop into a slime which combines with the naturally occurring algae growth resulting in a clogged drain.
In the past homeowners have tried diluted bleach, distilled white vinegar and other products with mixed results. The manufacturer of NuLine AC Drain Line Cleaner advertise their product as a non-corrosive alternate to traditional chlorine tablets or bleach and which is able to loosen and remove slime & scum build-up. It is environmentally friendly, enzyme based and can combat algae growth for up to 3 months. Thus far, in the houses that have been using this product the condensate lines have been clog-free. If clogging is an issue for you, this may be worth checking out.
You can order Nuline on Amazon for less than fifteen dollars.