Quote:
Originally Posted by retiredguy123
If you really want to flush out the condensate line, buy one of these. It does a better job than hot water or vinegar.
Amazon.com |
Those do work, but you have to stop the backflow into the HVAC drain pan so that all the water's force goes out the drain line. To do that effectively you need a valve in the pipe between the hook up of the hose and the HVAC drainpan.