Basic Plumbing

1.1 Household Water Supply & Gravity Drainage

• Understand water supply: Overhead gravity tanks, booster pumps, and municipal water line pressure.
• Understand drainage systems: Soil, waste, and vent pipe layouts, traps (P-trap, S-trap), and preventing sewer gases.
• Plumbing safety rules: Using eye protection, handling blowtorches safely, and wearing cut-resistant work gloves.

2.1 Essential Hand Tool Identification & Safe Use

• Pipe wrenches: Using 10-inch and 14-inch pipe wrenches correctly to grip round metal pipes without slipping.
• Adjustable wrenches: Using smooth-jaw adjustable spanners on chrome-plated bathroom fixtures to avoid scratching surfaces.
• Cutting tools: Clean pipe cutting using ratchet PVC cutters, metal hacksaws, and internal deburring tools.

3.1 Material Properties & Fitting Selection

• Material properties: PVC (cold drainage), CPVC (hot/cold water lines), UPVC (exterior supply), and GI (galvanized iron).
• Fitting selection: When and how to use 90-degree elbows, 45-degree sweeps, equal tees, reducing couplers, and unions.
• Thread sealing: Applying Teflon (PTFE) thread seal tape clockwise around male threads (6 to 8 wraps) to ensure leakproof joints.

4.1 Faucet Maintenance & Cartridge Replacement

• Diagnosing tap leaks: Pinpoint worn rubber washers, damaged O-rings, and cracked ceramic disc cartridges.
• Disassembly steps: Remove decorative caps, unscrew spindle lock nuts, and extract cartridges without damaging faucet bodies.
• Spout aerator cleaning: Clear mineral buildup and hard-water sediment from faucet aerators to restore clean water flow.

5.1 Solvent Cement Welding Steps

• Dry fitting: Measure and dry-assemble all pipes and fittings to verify angles and lengths before applying adhesive.
• Surface preparation: Clean pipe ends with solvent primer to remove grease and soften plastic surfaces.
• Joining technique: Apply solvent cement evenly, push pipe into fitting with a quarter-turn twist, and hold firmly for 30 seconds.

6.1 Bathroom Fixture Installation

• Angle valve installation: Install 1/2-inch chrome angle stop valves on water inlet lines using Teflon tape.
• Health faucets and flexible hoses: Connect braided flexible hoses with rubber washers without over-tightening.
• Shower heads and arms: Install wall-mounted shower arms and overhead rain shower heads at proper heights.

7.1 Sinks & Waste Traps

• Sink waste coupling: Seal stainless sink couplings using plumber's putty or silicone gaskets to prevent under-sink leaks.
• Bottle trap setup: Install and align bottle traps to maintain water seals that block foul sewer gases.
• Flexible drain hose routing: Connect corrugated flexible waste pipes into wall drain sockets with airtight rubber grommets.

8.1 Leak Diagnostics & Joint Repair

• Locate hidden leaks: Use pressure gauges and moisture meters to detect leaks behind tiles and inside walls.
• Repair damaged sections: Cut out cracked pipe sections and install slide slip-couplers or compression fittings.
• Temporary emergency fixes: Apply self-fusing silicone repair tape and pipe repair clamps to control high-pressure leaks.

9.1 Preventative Maintenance & Drain Clearing

• Clearing clogged drains: Clear sink and floor drain blockages using hand drain snakes and plunger tools.
• Water heater maintenance: Inspect pressure relief valves and flush sediment from geysers annually.
• Overhead tank maintenance: Clean sediment from tanks and service float ball valves to prevent overflow.

10.1 Practical Capstone Demonstration

• Project 1: Replace a leaking washbasin faucet and its flexible angle valve connections.
• Project 2: Measure, assemble, solvent-weld, and mount a 1-meter PVC pipeline section.
• Project 3: Install an under-sink bottle trap and test it with a full basin water discharge.

11.1 Starter Tool Kit & Estimated Budget

Essential starter plumbing toolkit with standard market prices in India:

1. **Taparia 10-inch Heavy Duty Pipe Wrench**: ₹450
2. **Stanley 10-inch Adjustable Spanner**: ₹380
3. **PVC Ratchet Pipe Cutter (up to 42mm)**: ₹420
4. **Standard 12-inch Hacksaw Frame with Blades**: ₹220
5. **Freemans 5-Meter Steel Measuring Tape**: ₹160
6. **Taparia 8-inch Combination Pliers**: ₹240
7. **Magnetic Spirit Level (9-inch)**: ₹190
8. **Teflon Tape Pack (10 Rolls) & Solvent Cement (250ml)**: ₹250

**Total Estimated Starter Budget: ₹2,310**

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12.1 Industry Reference Books

Master plumbing theory, installation diagrams, and trade standards with these manuals:

1. **Black & Decker Complete Guide to Plumbing (7th Edition)**
*Comprehensive photo-illustrated guide to modern residential plumbing, fixture installation, and repairs.*
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2. **Plumber Trade Theory (ITI NCVT Standard)**
*The standard vocational trade theory textbook covering Indian pipe standards, fitting types, and sanitary codes.*
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3. **Ultimate Guide: Plumbing (5th Updated Edition)** by Creative Homeowner
*A practical handbook covering household plumbing systems, valves, drain-waste-vent setups, and maintenance.*
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13.1 Project 1: Replace a Basin Tap

Isolate the angle valve, remove the old tap with a basin wrench, clean the mounting hole, install a new faucet with rubber washers, apply Teflon tape, and test for leaks.

13.2 Project 2: Install a PVC Water Line

Measure, cut, deburr, dry-fit, and solvent-weld a multi-angle PVC distribution line with ball valves, elbows, and tees, then test under pressure for 15 minutes.

13.3 Project 3: Kitchen Sink Connection

Install a stainless steel sink waste coupling with plumber's putty, mount the P-trap/bottle trap, connect flexible drain hoses, and verify watertight drainage under high flow.