Drainage Claims Mastery — from instruction to settlement

Six interactive modules + capstone certification, built around the WRc Drain Repair Book (4th edition). Designed for Catalyst handlers, surveyors and claims teams. You'll learn ownership rules, defect classification, repair specifications, off-mains treatment, tree roots, and how to apply all of it on a live claim.

6
Interactive modules
~3 hrs
Total run-time
85+
Quiz questions
80%
Cert pass mark

Why this matters

Drainage claims are now a meaningful share of Catalyst's work — and the technical bar is high. The wrong answer on responsibility, the wrong gradient on a replacement field, or the wrong CIPP wall thickness can turn a routine claim into a complaint, a regulatory breach, or a liability dispute. This curriculum gives every handler the same baseline: the WRc rules, the British Standards behind them, and a reliable way to apply them to a real instruction.

📘 What you'll be able to do
  • Determine in under a minute whether a drainage problem is a private or public-sewer responsibility
  • Read a CCTV survey and assign a defect a WRc condition grade A / B / C
  • Pick the right repair technique — patch, CIPP, excavate or pipe-burst — and challenge a contractor's spec
  • Audit an off-mains tank or drainage field installation against current Building Regulations + General Binding Rules
  • Spot the questions you should be asking when a claim doesn't quite add up

The Curriculum

Modules are designed to be done in order — each one builds on the last. Each ends with a knowledge check; you need 80% to unlock the next module. Capstone certification covers all six modules.

1
Drainage Foundations
Anatomy and terminology, pipe materials, drain vs sewer vs lateral, foul vs surface vs combined. The shared vocabulary every handler needs before anything else.
20 min10 questions
Start Module 1 →
2
Who Owns What
The 14-question responsibility decision tree. Public vs private, the 1937 cut-off, the 2011 transfer, Section 104 agreements, and the difference between England, Wales and Scotland.
30 min12 questions
Start Module 2 →
3
Drains & Sewers
Site investigation, CCTV survey, jetting pressures by pipe material, leakage testing, and WRc condition grades A / B / C. Then how to choose the right repair: patch, CIPP, excavate, ream or burst.
40 min15 questions
Start Module 3 →
4
Private Treatment Systems
Off-mains drainage. Cesspools, septic tanks, package STPs, drainage fields, mounds, reed beds. General Binding Rules, percolation testing (Vp), drainage field sizing, and Building Regs Part H.
40 min15 questions
Start Module 4 →
5
Tree Roots & Repair Specifications
Species → distance rules, root ingress mechanisms, repair specs for CIPP, patch and open-cut. Bedding and surround dimensions, BS pipe standards, asbestos rules for pitch fibre.
30 min12 questions
Start Module 5 →
6
Claims Decision Framework
Putting it all together — a full case study walkthrough. Scope vs liability, validating contractor costs, drafting a recommendation, and knowing when to challenge.
30 min15 questions
Start Capstone →

Watch the narrated video versions

Each module is also available as a narrated video (UK English neural voice). Use these for self-paced learning, replay, or LMS embedding. Total ~30 minutes of content.

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Curriculum Overview
2:26 — what the curriculum covers and how to use it
Play ▶
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M1 — Drainage Foundations
3:41 — anatomy and terminology
Play ▶
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M2 — Who Owns What
3:54 — responsibility and the decision tree
Play ▶
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M3 — Drains & Sewers
5:00 — investigation, grading, repair
Play ▶
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M4 — Private Treatment
4:59 — off-mains, GBR, drainage fields
Play ▶
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M5 — Tree Roots & Specs
4:38 — species standoffs, repair specs
Play ▶
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M6 — Claims Framework
6:05 — full case study walkthrough
Play ▶

Final Certification

After all six modules, take the final certification — 30 questions across all topics, randomised order, 80% to pass. Successful candidates can download a personalised completion certificate.

Go to Certification →

How to use this portal

  1. Start with Module 1. Even if you've worked drainage for years, the WRc terminology is precise — calibrate first.
  2. Read each module section before the quiz. The interactive elements (flip cards, decision trees, hotspots) are part of the learning, not decoration.
  3. Aim for 80% on every quiz. If you score below, review the section and retake — the system tracks your best score.
  4. Complete the capstone case study (Module 6) before sitting the final certification.
  5. Download your certificate when you pass — print or save as PDF.
💾 Your progress saves automatically

Progress is stored in your browser. If you switch devices or clear browsing data, you'll need to start over. Print your certificate as soon as you earn it.