Home inspectorsencounter grey duct tape used all the time for many household repairs.
It’s true, that duct tape has 1001 uses. There’s a book about duct tape that you can buy on Amazon called… you guessed it… the Duct Tape book.
In the photo, duct tape has been used as a band-aid to stem leakage on a corroded pipe above a crawlspace water heater supply pipe.
Although the water heater is only 2 years old, the steel pipe fitting was connected to a flexible copper pipe without enough Teflon tape, pipe thread compound or better yet, a pipe union fitting to isolate the dissimilar metals – which leads to corrosion.
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