Rainwater Harvesting System I

Plumbing · Level 4  ·  6 Chapters

Compiled by: Mary Maina

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What Rainwater Harvesting System I covers

Rainwater Harvesting System I teaches Plumbing Level 4 trainees to turn a roof into a source of water. They prepare a schematic drawing using working drawings, measurement conversion, symbols and design sketching, then cost the materials and supplies through a schedule and quantification. Fabricating rainwater goods follows, with tools, equipment and housekeeping, and then installing them: harvesting methods, identifying rainwater goods, setting out and fixing. The unit ends with testing the system through water tests and fault finding, and maintaining it by detecting faults, repairing them and testing again. Protective equipment is part of every outcome.

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Careers after Rainwater Harvesting System I

Rainwater harvesting is a fast-growing service across Kenya, from upscale resorts on the coast to remote schools in the highlands. Mastering the drawing, planning, and installation skills in this unit opens doors to many hands-on jobs and entrepreneurial opportunities where clean water is a prized commodity.

  • Construction firms building new residential estates in Kiambu and Machakos - you read and interpret the rainwater system drawings, choose the right scales and symbols, and prepare material schedules and cost estimates that help the project stay on budget, earning a regular wage as a site drafter or junior estimator.
  • Hotel and resort maintenance teams in Mombasa, Diani and Malindi - you set out and install rainwater gutters, down-pipes and storage tanks according to the designer’s plans, ensuring the property meets sustainability targets and charging the employer a skilled-technician salary.
  • School and college campuses in Nakuru and Eldoret - you produce accurate sketches of rainwater collection layouts, select appropriate fittings, and conduct water quality tests, earning a stipend or contract fee from the institution’s facilities department.
  • County referral hospitals and health centres in Kisumu and Nyeri - you install rainwater harvesting systems that supplement municipal supply, preparing detailed material lists and cost sheets that support the hospital’s procurement process, and receive a professional wage in the facilities management unit.
  • NGO-led community water projects in Turkana and Garissa - you work as a field technician, interpreting simple working drawings, choosing tools, and safely installing rainwater goods for households, paid per project or through a modest grant-based salary.
  • Small-scale agricultural farms in Makueni and Kitui - you design and fit rainwater storage for irrigation, calculate volumes using drawing scales, and test water suitability for crops, earning income as a freelance water-system consultant charging per installation.
  • Self-employed rainwater-system contractor serving peri-urban areas of Nairobi, Thika and Nakuru - you market your ability to read plans, produce cost estimates, and deliver clean installations; you charge clients for material supply, labour, and post-install testing, building a reputation that brings repeat business.
  • Industrial parks in Ruiru and Athi River - you assist the plant’s engineering team by preparing accurate material take-offs and ensuring all PPE and housekeeping standards are met during installation, receiving a technical staff salary.
  • Local hardware and building-materials shops in Kisumu and Eldoret - you act as a product specialist, helping customers choose the right rainwater-goods and tools based on drawing requirements, earning commissions or a salaried position in sales and technical support.

Every time you step onto a site, your ability to read drawings, plan materials, keep a safe work environment, and verify water quality will be the difference between a leaky system and a reliable source of water. Keep sharpening these skills - you’re building a career that supplies life-saving water to communities and businesses across Kenya.

Chapters

What Rainwater Harvesting System I covers: 30 main topics in 6 chapters

1. Prepare rainwater harvesting schematic drawing

  1. 1.1 Personal Protective Equipment
  2. 1.2 working drawings
  3. 1.3 Measurements conversion
  4. 1.4 Symbols
  5. 1.5 Design sketching

2. Cost rainwater harvesting system materials & supplies

  1. 2.1 Materials and supplies
  2. 2.2 Materials schedule
  3. 2.3 Material quantification

3. Fabricate rainwater goods

  1. 3.1 Personal Protective Equipment
  2. 3.2 Tools and equipment
  3. 3.3 Rain water goods
  4. 3.4 Fabrication
  5. 3.5 Housekeeping

4. Install rain water goods

  1. 4.1 Personal Protective Equipment
  2. 4.2 Harvesting methods
  3. 4.3 Identification of rainwater goods
  4. 4.4 Installation tools and equipment
  5. 4.5 Setting out
  6. 4.6 Installation
  7. 4.7 Housekeeping

5. Test rainwater system

  1. 5.1 Personal Protective Equipment
  2. 5.2 Water tests
  3. 5.3 Rainwater system faults
  4. 5.4 Housekeeping

6. Maintain rain water harvesting system

  1. 6.1 Personal Protective Equipment
  2. 6.2 Faults detection
  3. 6.3 Tools and equipment
  4. 6.4 Faults repair
  5. 6.5 Maintain and test rainwater system
  6. 6.6 housekeeping

Practise this unit

Revise this unit

3 more for this unit

Beyond the syllabus

Other units in Module II