This Drainage Inspection and Assessment (DIA) online course is designed for any professional involved in maintenance or condition assessment of below ground drainage systems.
In this lesson, we'll explore the concepts of drain and sewer ownership, as well as the maintenance responsibilities for single and multiple property scenarios. Understanding these responsibilities is crucial for property owners, managers, and sewer surveying professionals.
This module outlines the regulatory information that relates to drainage systems in the UK.
The British and European Drain and Sewer Standards
02:48
Building Regulations – Approved Document H
03:01
Manual of Sewer Condition Classification
01:19
The Drain Repair Book
01:38
Public Health Legislation
02:21
The Environment Agency (EA) – The principal environmental regulator for England
03:12
Principle Regulators for Wales, Scotland, Ireland and Northern Ireland
Standards, Regulations and Regulatory Authorities Quiz
Protecting Property – The Importance of Drainage Maintenance
Proper drain maintenance is essential for preventing foul water and surface water drainage issues that can lead to blockages, disruptions, damages, and health and safety concerns. In this lesson, we'll explore the benefits of planned preventative drain maintenance contracts and how they can help protect your property or business from the risk of flooding.
The Risks of Neglected Drains
The Benefits of Planned Preventative Maintenance
Cleaning and Clearing equipment and techniques
Protecting Property – The Importance of Drainage Maintenance Quiz
Drainage Design
Increase your knowledge on drainage appliances, assets, general design and typical systems.
Above Ground Assets
Drainage Appliances and Equipment
Pipes, Pipe Fittings and Joints
Gulleys (or gullies)
Soakaways
Interceptor Traps
Drainage Design Quiz 1
Access Points
Rocker Pipes
Drainage System Backdrops
Channel Drains
Picture Test
Catch Pits and Separation Tanks
Drainage Design Quiz 2
SUDs, Misconnections and Off Grid Systems
Sustainable Urban Drainage Systems description. Misconnections and how to spot them, and Off Grid Systems (where there is no suitable public sewer connection).
Misconnections
Sustainable Urban Drainage Systems (SUDS)
Offgrid Systems
Misconnections and Other Systems Quiz
Drawing a Site Plan
An important aspect of any drainage survey is the provision of a site plan that relates to the survey report information. This will help the client understand where their drains and drainage apparatus is as well aiding the drainage contractor when they are considering remedial recommendations.
Providing a useful Site Plan
Site Plan Design Assignment
Investigation and Reporting
Considering the correct methods for inspecting drainage systems to ascertain their condition. In this module we discuss methods and best practice when surveying drainage systems.
CCTV Surveys – a brief intro
Other Types of Drain Survey
Home Buyers Survey
The Benefits of a Drainage Survey Report
Water Tightness
Investigation and Reporting Quiz
The CCTV Survey: Quality First
This module covers the CCTV survey and how to ensure the you get the best results and provide a quality survey.
Introduction
Picture Quality
Pre-Survey Checklist
Lighting
Cable Calibration
Centering the Camera in the Sewer
The Offset Distance
Final Checks
The CCTV Survey Quiz
Survey Reporting
How to code and classify using BS EN 13508-2 based definitions.
Mastering Header Details
Unplotted Manholes and Node Points
The Standard Coding Form
Headers and Observations
Manhole/Node Codes
The CCTV Survey Quiz
CCTV Survey Condition Observations
Understanding condition observations and defect codes for drainage surveys.
General Rules for Observations
Structural Observations and Defects
Examples and definitions of structural defects such as cracks, fractures, joint issues, holes and breaks.
Identifying and Coding Joint Displaced, Open Joints, Cracks, and Fractures
Describing defects that affect the operational capacity of drains and sewers
Infiltration and Roots
Deposits
Obstructions and Obstacles
Water Levels and Line Deviations
Operational Defects: Deposits, Obstructions, Water Levels, and Line Deviations Quiz
Construction Observation Codes and Descriptions
In this module we are looking at changes in the fabric of the drain or sewer between manholes and noting these in a quick and accurate format.
Shape, Lining, and Material Changes
Junctions and Connections
Defective Connections or Junctions
Joint Seal Issues and Lining Defects
Construction Observations: Shape Changes, Lining Changes, Material Changes, Junctions, Connections, and Lining Defects Quiz
Miscellaneous observation Codes and Descriptions
This module covers the condition codes that don't fall into the other categories. These are generally not related to defective areas.
Loss of Vision, Remarks, Vermin and Serviceability
Observation Understanding Test
This is a multiple choice test of your observation and defect understanding. There will be 20 images of defects or observations. You will select what you think is the correct definition. It is recommended you complete this assessment on a large screen device with a mouse.
Image Interpretation Test
Repair Recommendations
The best practice for remedial recommendations based on drainage survey results is discussed in this module.
We provide a free Induction Course that all candidates should complete prior to starting a full course.
Requirements
If you want to complete any of our courses, please complete the Induction Course first. This is a free course and provides guide lines for course completion.
A copy of the latest edition of the WRc Manual of Sewer Condition Classification and Drainage Repair Book are recommended but not essential.