CODES

ADOPTS WITH AMENDMENTS:

International Plumbing Code 2012 (IPC 2012)

Copyright

Preface

Effective Use of the International Plumbing Code

Legislation

Chapter 1 Scope and Administration

Chapter 2 Definitions

Chapter 3 General Regulations

Chapter 4 Fixtures, Faucets and Fixture Fittings

Chapter 5 Water Heaters

Chapter 6 Water Supply and Distribution

Chapter 7 Sanitary Drainage

Chapter 8 Indirect/Special Waste

Chapter 9 Vents

Chapter 10 Traps, Interceptors and Separators

Chapter 11 Storm Drainage

Chapter 12 Special Piping and Storage Systems

Chapter 13 Gray Water Recycling Systems

Chapter 13 Gray Water Recycling Systems

Chapter 14 Referenced Standards

Chapter 15 Rain Water Harvesting Systems

Chapter 16 Reclaimed Water Systems for Buildings

Appendix A Plumbing Permit Fee Schedule

Appendix B Rates of Rainfall for Various Cities

Appendix C Vacuum Drainage System

Appendix D Degree Day and Design Temperatures

Appendix E Sizing of Water Piping System

Appendix F Structural Safety

Section 1301 General

STATE AMENDMENT

1301.1 Scope.

STATE AMENDMENT
The provisions of this Chapter shall govern the materials, design, construction and installation of gray water systems for flushing of water closets and urinals. Gray water may also be used for other purposes when designed by an engineer licensed in the state of Georgia and the system is approved by the Authority Having Jurisdiction.

1301.2 Health and Safety

STATE AMENDMENT
Humans shall not contact gray water, except as required to maintain the gray water treatment and distribution system. Nothing contained in this Chapter shall be construed to prevent the local government from mandating compliance with stricter requirements than those contained herein, where such requirements are essential in maintaining safe and sanitary conditions or from prohibiting gray water systems.

1301.3 Definition.

STATE AMENDMENT
The following terms shall have the meaning shown herein.

CONDENSATE. Condensed water collected from the surfaces of an air conditioning unit’s evaporator coils or a dehumidifier unit’s evaporator coils.

GRAY WATER. Waste discharged from lavatories, bathtubs, showers, clothes washers and laundry trays.

1301.4 Permits.

STATE AMENDMENT
Check with the local Authority Having Jurisdiction for permit requirements.

1301.5 Installation.

STATE AMENDMENT
In addition to the provisions of Section 1301, systems for flushing of water closets and urinals shall comply with Section 1302. Except as provided for in this Chapter, all systems shall comply with the provisions of the International Plumbing Code.

1301.6 Materials.

STATE AMENDMENT
Above-ground drain, waste and vent piping for gray water systems shall conform to one of the standards listed in Table 702.1. Gray water underground building drainage and vent pipe shall conform to one of the standards listed in Table 702.2.

1301.7 Tests.

STATE AMENDMENT
Drain, waste and vent piping for gray water systems shall be tested in accordance with Section 312.

1301.8 Inspections.

STATE AMENDMENT
Check with the local Authority Having Jurisdiction for inspection requirements.
Only connections in accordance with Section 1302.3 shall be made between a gray water recycling system and a potable water system.
Gray water recycling systems shall receive only the waste discharge of bathtubs, showers, lavatories, clothes washers or laundry trays. Although not considered gray water, condensate may be discharged to a gray water system.
Gray water shall be collected in an approved reservoir constructed of durable, nonabsorbent and corrosion-resistant materials. The reservoir shall be a closed vessel. Access openings shall be provided to allow inspection and cleaning of the reservoir interior.
A full open valve shall be installed prior to the collection reservoir to allow gray water to discharge directly to the sanitary drainage system during maintenance of the gray water system.

1301.12 Filtration.

STATE AMENDMENT
Gray water shall pass through an approved filter system prior to distribution.

1301.13 Overflow.

STATE AMENDMENT
The collection reservoir shall be equipped with an overflow pipe having the same or larger diameter as the influent pipe for the gray water. The overflow pipe shall be indirectly connected to the sanitary drainage system.

1301.14 Drain.

STATE AMENDMENT
A method for draining the collection reservoir shall be provided and shall be indirectly connected to the sanitary drainage.

1301.15 Vent required

STATE AMENDMENT
The reservoir shall be provided with venting to allow for the induction and release of air to allow for the proper operation of the reservoir.

1301.16 Identification.

STATE AMENDMENT
Plumbing fixtures and reservoirs shall be identified as containing nonpotable gray water. Piping shall be purple and identified in accordance with Section 608.8.
Gray water valves shall be identified as nonpotable gray water and also identified as for the purpose of the valve.

1302.1 Collection reservoir

STATE AMENDMENT
The holding capacity of the reservoir shall supplement the daily flushing requirements of the fixtures supplied with gray water.

1302.2 Disinfection.

STATE AMENDMENT
Gray water shall be disinfected by an approved method that employs one or more disinfectants, such as chlorine, iodine, ozone, UV, or other approved disinfectants.

1302.3 Makeup water

STATE AMENDMENT
Potable water shall be supplied as a source of makeup water for the gray water system. The potable water supply shall be protected against backflow by the installation of an air gap device or in accordance with Section 608. There shall be a full-open valve and a water level control valve located on the makeup water supply line to the collection reservoir.

1302.4 Coloring.

STATE AMENDMENT
The gray water shall be dyed with a food grade vegetable dye before such water is supplied to the fixtures.

1302.5 Materials.

STATE AMENDMENT
Distribution piping shall conform to one of the standards listed in Table 605.4.

1303.1 Scope.

STATE AMENDMENT
Gray water may be used for subsurface irrigation of landscape and shall be permitted by the local county health department in accordance with Georgia Department of Human Resources regulations as a separate onsite sewage management system. Permits and inspections are required by the local county health department.

(Effective January 1, 2014)
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