CLEAR DRAIN BLOCK - USING NITROGEN ONLY LEVEL 1 CONDENSATE DRAIN LINES NEED TO BE CLEANED OR THEY CAN CLOG WITH ALGAE AND DEBRIS Includes shop vacuuming when necessary and 1 PVC Coupling Removed water from downstairs emergency pan. Cleared primary. Restriction was in primary drain between indoor equipment and ptrap underneath sink. Performed drain test on equipment and sink after repair were made. System and sink draining properly again at this time. Recommend new drain pan. Homeowner requested discount on repair due to just being out here within the last two weeks to perform preventative maintenance. Dispatch/office authorized waving the service fee of $45..