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Leaking tank drains
Several years ago I posted how I fixed a leak in my tanks drain lines. They are black ABS so I used the black glue from big box store and a roll of the fiber glass sheet rock tape.
If possible find the crack and drill a very small hole at each end of the crack to stop the crack from continuing.
Rough sand the pipes with like 80 grit paper and clean with lacquer thinner. Cut pieces of the glass tape. Apply a layer of ABS glue to the area and then 'wrap' the entire area to be worked on. Work the tape into the glue. Smooth out and let dry. Cut more pieces and repeat. When satisfied that you have covered a sufficienty large area your done. I went big.
I did this repair about 5 years ago and have had zero problem since.
John
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