Water Supply Piping Defects List & Home Inspection Education
DEFECTS LIST - PLUMBING SUPPLY PIPE - CONTENTS: Inspection recommendations for water supply piping in buildings. Water supply piping typical defects list. Lists of important defects for residential buildings. What does a home inspector need to know? Home inspection training and education curriculum recommendations
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This article lists significant water supply piping defects, definitions, and home inspection education topics.
This article series, beginning at BUILDING DEFECTS LISTS, provides lists of common building defects and basic defect knowledge that also outline recommended curriculum content for home inspector education. The building defects and inspection points listed in these articles also guide homeowners and home buyers to building areas that merit careful attention and often point areas of safety concern or important maintenance and repair tasks
Home Inspection Education Curriculum - Plumbing, Supply
6.0 PLUMBING System Inspection Recommendations & Typical Defecs List
6.1 Supply Plumbing Inspection & Typical Defects
6.1.1 Knowledge Base for Inspecting Building Supply Piping Systems
1. Describe the function of residential supply plumbing.
2. Describe public and private supply systems.
3. List the materials and components of public and private systems, including wells, pumps, pressure tanks, service piping, shut off valves, piping, isolating valves, hangers.
4. Describe the features of adequate installation and repair technique on supply plumbing systems.
5. Define the following terms: (note- private well systems not required to be inspected, but nice to know, maybe delete well pump terms below?)
cross connection, static pressure, anti-siphon device, potable water, pressure, flow, volume, pressure loss due to friction, pressure loss due to elevation, pressure regulator, distribution piping, shallow well, deep well, foot valve, reciprocating (piston) pump, centrifugal pump, jet pump, submersible pump, foot valve, venturi, total head, suction head, discharge head, pressure tank, globe valve, gate valve, ball valve, type M, L, K and DWV copper piping, flare fitting, dielectric union, water hammer, backflow, back siphonage, air gap.
6. Outline the life expectancy of each common supply plumbing material.
7. Identify the codes or standards which apply to public and private plumbing systems in your area.
6.1.2 Inspection skills for Inspecting Building Supply Piping Systems
1. Describe the inspection procedure for supply plumbing systems.
2. Identify the common defects listed on the next page.
3. Describe the implications of each defect.
4. Identify the safety issues for the inspector and occupant of the home (fall hazard re: wells, contaminated water causing illness)
5. Communicate findings to client verbally and in writing, recommending corrective action when needed.
SUPPLY PLUMBING TYPICAL DEFECTS
WATER SUPPLY PUMPS, Typical Defects PRESSURE REGULATORS, Typical Defects
• Damaged • Leaking
• Excessive noise or vibration • Missing
• Frozen • No bypass or relief valve
• Inoperative • Poor location
• Leak • Rust
• Lost prime • Set wrong
• Running continuously SUPPLY PIPING IN HOUSES, Typical Defects
Readers should see PLUMBING SYSTEM INSPECT DIAGNOSE REPAIR for our complete list of articles on this topic. Also see HOME & BUILDING INSPECTORS & INSPECTION METHODS. Use the Search Box at the top or bottom of these pages to find in-depth information about building, energy savings, and indoor environment inspection, diagnosis and repair at this website. Watch out: these inspection lists do not list all possible defects for the systems discussed, and not all home or building inspectors will examine all of the items listed here. CONTACT us to suggest corrections or additions to articles at this website.
Continue reading at ARTICLE INDEX to PLUMBING SYSTEMS where we include articles on specific types of piping (copper, lead, plastic etc), or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.
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Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair
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The Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume.
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