If the furnace’s drain is filled with water, it is either clogged, broken or improperly installed. A condensate line that is ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Plumber’s tape is known by a variety of names—Teflon tape, thread tape, or PTFE ...

pipes.jpg. Be sure you have properly sized your pipe's diameter, either A1/2 inch or A3/4 inch, so that the insulation tubes fit snuggly. Apply duct tape along the slit to create an air seal.