Inspecting Commercial Plumbing Systems

Inspection Checklist #2
DWV System Inspection Checklist
SECTION 5: FUEL SUPPLY AND DISTRIBUTION SYSTEMS
Fuel Systems
3 Topics
Fuel System Basics
Inspection Scope
Natural Gas System Overview
Gas Meter and Shutoff Valves
Natural Gas Meters
4 Topics
Basic Design Principles
Commercial vs. Residential Gas Meters
Common Components
Varying Installation Designs
Multi-Tenant and Multi-Building Properties
3 Topics
What to Know First
Meter and Shut-off Valve Configurations
Meter Labeling
Gas Meter Inspection
3 Topics
Key Inspection Points
Meter Protection
Common Defects
Gas Distribution
Gas Piping Distribution Components
Gas Piping Distribution Materials
5 Topics
Common Materials
Steel
Copper
Plastic
Fittings and Sealants
Color-Coding and Labeling
Gas Piping Installation
6 Topics
Interior Wall and Floor Penetrations
Aboveground Exterior Piping
Exterior Wall Penetrations
Underground Installations
At-Grade and Slab Transitions
Piping Support
Grounding and Bonding
2 Topics
Gas Piping Bonding Requirements
CSST Bonding
Gas Appliance Components
6 Topics | 1 Exam
General Requirements and Locations
Appliance Connectors Overview
Flexible Appliance Connectors
Commercial Kitchen Appliances
Gas Appliance Shutoff Valves
Sediment Traps
Quiz #8: Natural Gas and Fuel Distribution
Common Defects
Inspection Checklist #3
Fuel Supply and Distribution System Inspection Checklist
SECTION 6: OTHER FUEL SYSTEMS AND STORAGE
Foundational Overview
2 Topics
Fuels Beyond Natural Gas
Inspection Scope
Environmental Concerns and Investigations
Types and Uses
Propane
5 Topics
Use and Supply
Single-User vs. Multi-User Systems
Identifying the Type of Fuel System Present
Safety Considerations and Components
Tank Placement and Clearances
Fuel Oil
3 Topics
Common Uses
AST Applications
UST Applications
Heating Oil
6 Topics
Applications and Geographic Use
AST
UST
Identifying UST
Component Requirements UST
Common Heating Oil System Defects
Emergency Backup Generators
6 Topics
Applications
Fuel Storage and Supply
Common Installation Configurations
Common Component List
Inspection Video
Inspection Scope and Considerations
Inspection Checklist #4
Other Fuel Systems and Storage Inspection Checklist
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Propane

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