Tracer Wire
(1) Except as provided in Sentence (2), a 14 gauge TW solid copper light coloured plastic coated tracer wire shall be attached to every non-metallic water service pipe or fire service main.
(2) Where a water service pipe or fire service main is detectable without the tracer wire referenced in Sentence (1), the tracer wire may be omitted.
Article 7.2.11.3 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only