Below is a clear classification of Plumbing Work Types, used in Residential, Commercial, and Industrial Buildings.
1. Water Supply Plumbing
A. Purpose: To supply clean, potable water
B. Cold water piping
C. Hot water piping
D. Overhead & underground tanks
E. Pump connections
F. Pressure boosting systems
G. Used In: Homes, apartments, offices, hospitals.
2. Sanitary Plumbing (Drainage System)
A. Purpose: To remove wastewater safely
B. Soil pipe (toilet waste)
C. Waste pipe (bath, basin, kitchen)
Vent pipe
D. Traps (P-trap, S-trap, floor trap)
E. Manholes & inspection chambers
F. Used In: All buildings.
3. Plumbing Fixtures Installation
A. Purpose: To connect user fixtures
B. Water closets (WC)
C. Wash basins
D. Urinals
E. Kitchen sinks
F. Showers, taps & mixers
G. Used In: Residential & commercial buildings.
4. Hot Water Plumbing
A. Purpose: To distribute heated water
B. Geyser / water heater connections
C. Solar hot water systems
D. Insulated piping
E. Temperature control valves
F. Used In: Homes, hotels, hospitals.
5. External Plumbing
A. Purpose: Underground & outdoor plumbing
B. Underground water lines
C. Sewer lines
D. Rainwater drainage
E. Septic tank connections
F. Municipal line connections.
6. Fire Fighting Plumbing
A. Purpose: Fire safety & emergency response
B. Fire water tanks
C. Hydrant piping
D. Sprinkler systems
E. Fire pumps
F. Hose reels
G. Used In: Commercial & high-rise buildings.
7. Gas Plumbing
A. Purpose: Safe gas supply
B. LPG / PNG piping
C. Copper / GI gas pipes
D. Regulators & valves
E. Leak detection
F. Used In: Kitchens, hotels, restaurants.
8. Rainwater Harvesting Plumbing
A. Purpose: Water conservation
B. Roof rainwater pipes
C. Filters
D. Storage tanks
E. Recharge pits
F. Used In: Residential & commercial buildings.
9. Industrial / Process Plumbing
A. Purpose: Specialized water or fluid systems
B. High-pressure piping
C. Chemical pipelines
D. Cooling water systems
E. Compressed air piping
F. Used In: Factories & plants.
10. Maintenance & Repair Plumbing
A. Purpose: System upkeep
B. Leakage repair
C. Choke removal
D. Pipe replacement
E. Fixture repair
F. Pressure testing.
11. Green & Sustainable Plumbing
A. Purpose: Water efficiency
B. Low-flow fixtures
C. Greywater systems
D. Water recycling
E. Smart water meters.
RESIDENTIAL vs COMMERCIAL (Quick View) :::-----
Residential - Commercial :-
A. Simple layouts - Complex networks
B. Lower pressure - High pressure
C. PVC/CPVC pipes - GI/HDPE pipes
D. Few fixtures - Many fixtures.
🔧 PLUMBING GOLDEN RULES :::----
1. Proper slope is mandatory
2. Traps prevent foul smell
3. Venting avoids pressure issues
4. Leak testing before concealment.
