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// CODE SNIPPET

609.3 Under Concrete Slab

California Plumbing Code 2016 > 6 Water Supply and Distribution > 609.0 Installation, Testing, Unions, and Location > 609.3 Under Concrete Slab
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Water piping installed within a building and in or under a concrete floor slab resting on the ground shall be installed in accordance with the following requirements:
  1. Ferrous piping shall have a protective coating of an approved type, machine applied and in accordance with recognized standards. Field wrapping shall provide equivalent protection and shall be restricted to those short sections and fittings necessarily stripped for threading. Zinc coating (galvanizing) shall not be deemed adequate protection for piping or fittings. Approved nonferrous piping shall not be required to be wrapped.
  2. Copper or copper alloy tubing shall be installed without joints where possible. Where joints are permitted, they shall be brazed, and fittings shall be wrought copper.

    For the purpose of this section, "within a building" shall mean within the fixed limits of the building foundation.

Related Code Sections


609.3 Water Supply and Distribution, Under Concrete Slab
Water piping installed within a building and in or under a concrete floor slab resting on the ground shall be installed in accordance ...
California Plumbing Code 2016 > 6 Water Supply and Distribution > 609.0 Installation, Testing, Unions, and Location > 609.3 Under Concrete Slab
609.3 Water Supply and Distribution, Under Concrete Slab
Water piping installed within a building and in or under a concrete floor slab resting on the ground shall be installed in accordance ...
California Plumbing Code 2019 > 6 Water Supply and Distribution > 609.0 Installation, Testing, Unions, and Location > 609.3 Under Concrete Slab
603.12 Duct Systems, Underground Installation
, provided the joints are tightly sealed. Metal ducts where installed in or under a concrete slab shall be encased in not less than 2 inches (51 mm ...
California Mechanical Code 2016 > 6 Duct Systems > 603.0 Installation of Ducts > 603.12 Underground Installation
1220.3.3 Hydronics, Slab Penetration Tube and Joint Protection
Where embedded in or installed under a concrete slab, tubing shall be protected from damage at penetrations of the slab with a protective pipe sleeve ...
California Mechanical Code 2016 > 12 Hydronics > 1220.0 Auxiliary Systems > 1220.3 Snow Melt > 1220.3.3 Slab Penetration Tube and Joint Protection
1217.6.1 Hydronics, Slab Penetration Tube and Joint Protection
Where embedded in or installed under a concrete slab, tubing shall be protected from damage at penetrations of the slab with a protective pipe sleeve ...
California Mechanical Code 2016 > 12 Hydronics > 1217.0 Radiant Heating and Cooling > 1217.6 Poured Floor Systems (Thermal Mass) > 1217.6.1 Slab Penetration Tube and Joint Protection
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