Water leaking out of air handler from drain line being clogged. Float switch was getting stuck and not turning off AC system. Also, there is heavy amounts of biological growth buildup inside air handler. Gave client solutions for issues with system, however, system is seven years old and recommend replacing due to age and cost of repairs. Client chose to just go with the lowest option for now Because they are selling home. Cut in a clean out T on drain line, cleaned and flushed out drain line, and replaced float switch. Tested drain line, cycle tested system, or operations at this time.