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Drains, waste, and vents (DWV) are water-tested with a 10-foot head for 15 minutes or air tested at 5 psi for 15 minutes. Plastic pipe not allowed to be tested with air.
This Inspection Checklist reflects code requirements of the 2015 International Residential Code (IRC), 2015 Uniform Plumbing Code (UPC), 2014 National Electrical Code (NEC), and the 2015 International Fire Code (IFC). Please verify the following before calling for a plumbing rough-in inspection.
requirements for the proper installation and inspection of residential plumbing. You will learn the components of a plumbing supply and drainage system. You will learn about water heaters, fixtures and faucets. An inspection report should describe and identify, in written format, the inspected plumbing system of the dwelling, and should also ...
It addresses topics like minimum flow rates for lavatories, required drain sizes, proper trap and venting configurations, and piping materials used for supply lines and drains. The questions cover plumbing codes, best practices, and specifications for residential plumbing systems.
24 Δεκ 2023 · The general guideline for the slope of residential drain pipes is a minimum of 1/4 inch per foot (2% slope). This means that for every foot of pipe, it should have a quarter-inch drop to ensure adequate water flow.
The document summarizes requirements for the slope of horizontal drainage piping according to the 2018 International Plumbing Code. It states that horizontal drainage piping must be installed at a uniform and consistent slope as indicated in Table 704.1, with a minimum slope of 1/4 inch per foot for any piping upstream of a grease interceptor.
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