THE SHORT ANSWER
Supply piping brings pressurized water into your fixtures. Drain and sewer piping carries used water away, usually by gravity. The symptoms and safe repair approaches are different, so identifying which system is leaking matters.
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For more context about this type of plumbing issue, read our related Oklahoma City guide.
Read the related VIP plumbing guideEducational information, not a remote diagnosis. The right repair requires an onsite assessment. Plumbing conditions, safety concerns and local requirements vary. Stop using unsafe equipment and seek qualified help for gas, sewage, electricity or flooding hazards. See how we develop and update our homeowner guides.
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