PVC downdraft leaks

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  • This topic has 1 reply, 2 voices, and was last updated 21 years ago by Jerry Peck.
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    • #274075
      Cy Carey

      I have a 6 inch PVC pipe that serves as the vent for a cooktop. This is a downdraft vent that goes under the slap and vents to the outside of the house. Water is leaking into the pipe after a rain. The pipe has been tested and the leak is in a 22 degree joint about half way between the cooktop and the outside of the house (5 feet). The floor is brick and I do not want to have to go into the brick floor and then into the slap to fix the problem. Is there another way to fix the leak in the 6 inch PVC pipe?

    • #289103
      Jerry Peck

      “Is there another way to fix the leak in the 6 inch PVC pipe?”

      Yes, but you won’t like it either (however, you will dislike it less than going through the slab).

      You or the repair person will need to tunnel in under the slab to repair the leaking pipe joint. The easy part is tunneling in. The hard part comes when the repair is done and you have to pack fill and try to re-compact the now disturbed and expanded fill which was removed. Then, after re-compacting the fill as it is placed, you will need to termite treat this area either by injecting in from the side or by drilling holes through the brick from the top (just what you were trying to avoid doing, damaging the brick). There is a catch with the brick, if the mortar joints are wide enough, you can go through from the top in the grout joints and then just patch them when done.

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