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Plumber Red Seal · Question

What is the requirement for the discharge pipe from a sump pump that handles only storm water?

Storm water from a sump pump must not be connected to the sanitary sewer. It should be discharged to the exterior, a storm sewer, or a dry well, and graded to f

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Question: What is the requirement for the discharge pipe from a sump pump that handles only storm water?

Answer options:

  • It must be connected directly to the sanitary drainage system.
  • It must discharge into a plumbing fixture such as a laundry sink. ✅ It must be discharged in a manner that prevents water from re-entering the building.
  • It must be cross-connected to the potable water supply for priming.

Correct answer: It must be discharged in a manner that prevents water from re-entering the building.

Explanation: Storm water from a sump pump must not be connected to the sanitary sewer. It should be discharged to the exterior, a storm sewer, or a dry well, and graded to flow away from the building's foundation to prevent recirculation.

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