Section 12-F715. BACKWATER VALVES


Latest version.
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    Strike Section 715.1 of the International Plumbing Code in its entirety and insert new Section 715.1 in the Plumbing Code in its place to read as follows:

    715.1 Sewage backflow.  Where plumbing fixtures are installed on a floor with a finished floor elevation below the elevation of the manhole cover of the next upstream manhole in the public sewer, such fixtures shall be protected by a backwater valve installed in the building drain or horizontal branch serving such fixtures, or shall discharge to a sump complying with Section 712.3 and served by a sewage pump or ejector complying with Section 712.4.  Plumbing fixtures installed on a floor with a finished floor elevation above the elevation of the manhole cover of the next upstream manhole in the public sewer shall not discharge through a backwater valve or a sump. This section shall not apply to replacement in kind of compliant plumbing fixtures.

     

    Exception:  Where the code official deems it appropriate for the protection of existing multi-level buildings in flood prone areas, the retrofitting of backwater valves to be installed in the building drain or in a horizontal branch serving fixtures on a floor with a finished elevation above the adjacent manhole in the public sewer shall be allowed, thereby allowing such fixtures to discharge through the backwater valve. 

     

     

authority

Section 10 of the Construction Codes Approval and Amendments Act of 1986 (Act), effective March 21, 1987 (D.C. Law 6-216; D.C. Official Code § 6-1409 (2012 Repl.)) and Mayor’s Order 2009-22, dated February 25, 2009, as amended.

source

Final Rulemaking published at 61 DCR 3169 (March 28, 2014 – Part 2); as corrected by Errata Notice published at 61 DCR 5246 (May 23, 2014).

EditorNote

The District of Columbia Plumbing Code (2013), referred to as the “Plumbing Code,” consists of the 2012 edition of the International Plumbing Code as amended by the District of Columbia Plumbing Code Supplement (2013) (12 DCMR F). The International Plumbing Code is copyrighted by the International Code Council and therefore is not republished here. However, a copy of the text may be obtained at: http://publicecodes.cyberregs.com/icod/ipc/2012/index.htm?bu=IC-P-2012-000004&bu2=IC-P-2012-000019.