2024 P1 Plumbing Administration by mike.stahl | May 4, 2026 Welcome to your 2024 P1 Plumbing Administration Name Email For a vacuum test on a DWV system, a uniform gauge pressure of -10 inches of mercury column or ________ psi must be maintained. -5 -10 -20 -15 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. When plastic DWV systems are completed, they must be tested with ________ on the rough piping without any evidence of leaking. vacuum water air Any of the above None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. Gauges used for testing requiring a pressure of greater than 10 psi must utilize a testing gauge having increments of ________ psi or less. 1 0.10 2 0.25 None Show Hint Gauges used for testing shall be as follows: 1. Tests requiring a pressure of 10 psi or less shall utilize a testing gauge having increments of 0.10 psi (0.69 kPa) or less. 2. Tests requiring a pressure higher than 10 psi (0.69 kPa) but less than or equal to 100 psi (690 kPa) shall use a testing gauge having increments of 1 psi (6.9 kPa) or less. 3. Tests requiring a pressure higher than 100 psi (690 kPa) shall use a testing gauge having increments of 2 psi (14 kPa) or less. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.9 Test gauges. When shower floors and receptors have materials applied to make them water tight, the installation of the completed liner must be tested. The shower drain pipe must be plugged water tight. Then potable water will be used to fill the floor and receptor area to a depth of________ at the threshold. 1 inch (25.4 mm) 2 inches (51 mm) 1.5 inches (38 mm) 4 inches (102 mm) None Show Hint Where shower floors and receptors are made watertight by the application of materials required by Section P2709.2, the completed liner installation shall be tested. The pipe from the shower drain shall be plugged watertight for the test. The floor and receptor area shall be filled with potable water to a depth of not less than 2 inches (51 mm) measured at the threshold. Where a threshold of not less than 2 inches (51 mm) in height does not exist, a temporary threshold shall be constructed to retain the test water in the lined floor or receptor area to a level not less than 2 inches (51 mm) in depth measured at the threshold. The water shall be retained for a test period of not less than 15 minutes and there shall not be evidence of leakage. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.6 Shower liner test. Any additions, alterations, renovations or repairs to an existing plumbing system must comply with requirements for new plumbing, ________ compliance from the existing system. without requiring also requiring None of the above including None Show Hint Additions, alterations, renovations or repairs to any plumbing system shall conform to that required for a new plumbing system without requiring the existing plumbing system to comply with the requirements of this code. Additions, alterations or repairs shall not cause an existing system to become unsafe, insanitary or overloaded. Minor additions, alterations, renovations and repairs to existing plumbing systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2502: Existing Plumbing Systems P2502.2 Additions, alterations or repairs. When an entire sanitary drainage system of an existing building is replaced, the drains and sewers must be internally examined to be certain that the piping is ________ for the drainage load. All of the above enlarged correct sized None Show Hint Where the entire sanitary drainage system of an existing building is replaced, existing building drains under concrete slabs and existing building sewers that will serve the new system shall be internally examined to verify that the piping is sloping in the correct direction, is not broken, is not obstructed and is sized for the drainage load of the new plumbing drainage system to be installed. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2502, Existing Plumbing Systems P2502.1 Existing building sewers and building drains. For a forced sewer test, the piping must be pressurized to at least ________ psi more than the pump rating. 5 15 20 10 None Show Hint The building sewer shall be tested by insertion of a test plug at the point of connection with the public sewer, filling the building sewer with water and pressurizing the sewer to not less than a 10-foot (3048 mm) head of water. The test pressure shall not decrease during a period of not less than 15 minutes. The building sewer shall be water tight at all points. A forced sewer test shall consist of pressurizing the piping to a pressure of not less than 5 psi (34.5 kPa) greater than the pump rating and maintaining such pressure for not less than 15 minutes. The forced sewer shall be water tight at all points. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.4 Building sewer testing. When performing an air test for DWV rough plumbing, the portion under test shall be maintained at a gauge pressure of ________ psi. 10 5 7 8 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503 Inspection and Tests P2503.5 Drain, waste and vent systems. P2503.5.1 Rough plumbing. For a forced sewer test, the pressure must be maintained for at least ________ minutes. 20 15 5 10 None Show Hint The building sewer shall be tested by insertion of a test plug at the point of connection with the public sewer, filling the building sewer with water and pressurizing the sewer to not less than a 10-foot (3048 mm) head of water. The test pressure shall not decrease during a period of not less than 15 minutes. The building sewer shall be water tight at all points. A forced sewer test shall consist of pressurizing the piping to a pressure of not less than 5 psi (34.5 kPa) greater than the pump rating and maintaining such pressure for not less than 15 minutes. The forced sewer shall be water tight at all points. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.4 Building sewer testing. When performing a DWV water test, each section of the rough plumbing shall be filled with water to a point no less than ________ above the highest fitting connection in that section. 10 feet 4 feet 7 feet 5 feet None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503 Inspection and Tests P2503.5 Drain, waste and vent systems. P2503.5.1 Rough plumbing. If using air to test a DWV system, a gauge pressure of 10 inches of mercury column or 5 psi must be held at least ________ minutes without adding any air. 15 30 20 10 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. Where shower floors and receptors are made water tight, the completed liner installation must be tested. The pipe from the shower drain must be plugged water tight for the test. The water must be retained for at least ________ and there must be no evidence of leakage. 45 minutes 15 minutes 30 minutes 5 minutes None Show Hint Where shower floors and receptors are made watertight by the application of materials required by Section P2709.2, the completed liner installation shall be tested. The pipe from the shower drain shall be plugged watertight for the test. The floor and receptor area shall be filled with potable water to a depth of not less than 2 inches (51 mm) measured at the threshold. Where a threshold of not less than 2 inches (51 mm) in height does not exist, a temporary threshold shall be constructed to retain the test water in the lined floor or receptor area to a level not less than 2 inches (51 mm) in depth measured at the threshold. The water shall be retained for a test period of not less than 15 minutes and there shall not be evidence of leakage. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503, Inspection And Tests P2503.6 Shower liner test. If using a vacuum test on a DWV system, a gauge pressure of -10 inches of mercury column or -5 psi must be held at least ________ minutes without adding any air. 20 15 30 10 None Show Hint DWV systems shall be tested on completion of the rough piping installation by water, by air for piping systems other than plastic, or by a vacuum of air for plastic piping systems, without evidence of leakage. The test shall be applied to the drainage system in its entirety or in sections after rough-in piping has been installed, as follows: 1. Water test. Each section shall be filled with water to a point not less than 10 feet (3048 mm) above the highest fitting connection in that section, or to the highest point in the completed system. Water shall be held in the section under test for a period of 15 minutes. The system shall prove leak free by visual inspection. 2. Air test. The portion under test shall be maintained at a gauge pressure of 5 pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa). This pressure shall be held without introduction of additional air for a period of 15 minutes. 3. Vacuum test. The portion under test shall be evacuated of air by a vacuum-type pump to achieve a uniform gauge pressure of -5 pounds per square inch or a negative 10 inches of mercury column (-34 kPa). This pressure shall be held without the removal of additional air for a period of 15 minutes. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.5 Drain, waste and vent systems testing. P2503.5.1 Rough plumbing. Until a building official has ________, no part of a drainage or plumbing system or the entire system, may be concealed, covered, or put into use. approved inspected A through C tested None Show Hint A plumbing or drainage system, or part thereof, shall not be covered, concealed or put into use until it has been tested, inspected and approved by the building official. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.2 Concealment. When being tested, by means of a test plug being inserted at the connection to the public sewer and filling with water, a building sewer must be tested with at least a ________ foot head of water. 5 20 15 10 None Show Hint The building sewer shall be tested by insertion of a test plug at the point of connection with the public sewer, filling the building sewer with water and pressurizing the sewer to not less than a 10-foot (3048 mm) head of water. The test pressure shall not decrease during a period of not less than 15 minutes. The building sewer shall be water tight at all points. A forced sewer test shall consist of pressurizing the piping to a pressure of not less than 5 psi (34.5 kPa) greater than the pump rating and maintaining such pressure for not less than 15 minutes. The forced sewer shall be water tight at all points. 2024 International Residential Code Chapter 25 Plumbing Administration Section P2503: Inspection And Tests P2503.4 Building sewer testing. Previous Start Quiz Next Time's up
