MEP Plumbing Activities

Plumbers are an important part of any construction project. For some large projects (especially multi-dwelling buildings), the plumber may be provided with a design created by a plumbing consultant, a person who documents an appropriate design for the project’s needs. However, if no plan is supplied, the plumber’s job is to determine where pipes should be laid and then to install the plumbing systems. Plumbing is an important part of construction planning and management for different construction projects

What is Plumbing System?

Plumbing refers to the entire system of pipe fittings and appliances used for water supply and drainage.

What does MEP Plumbing involve?

Plumbing work is classified into eight classifications: water supply, gasfitting, sanitary, roofing (stormwater), drainage, mechanical services (heating, cooling, and ventilation), fire protection, and irrigation. Below is a brief explanation of each of these areas, as well as what has to be done in each.

1. Water Supply

This is the one we’re all familiar with: leaky taps, broken toilets, and leaking pipes are all water-related problems. Plumbing in the area of water supply refers to the construction, installation, replacement, repair, alteration, maintenance, testing, or commissioning of any water supply service.

2. Gasfitting

Gasfitting, like water supply, refers to any work done on any pipe, appliance, flue, fitting, apparatus, control, or other item related to the supply or use of gas. Because gas plumbing is a specialized field, make certain that the contractor is properly specialized to do gas plumbing or its maintenance. Working with LPG requires higher training.

3. Sanitary

This work relates to any part of an above-ground sanitary plumbing system that connects sanitary fixtures (toilets, basins, taps, sinks, showers) and appliances (dishwashers, washing machines) to a disposal system or below-ground sanitary drainage system.

4. Roofing (stormwater)

Stormwater plumbing is a field that involves the connection of any stormwater piping to a drain or tank, as well as any roof covering or flashing and any part of a roof drainage system involved in the collection or disposal of stormwater.

5. Drainage

Work involving any part of a below-ground sanitary drainage system, from the above-ground sewage or waste pipes to the disposal system, as well as any design work related to it. Similarly, stormwater drainage connects the roof water downpipes to the drainage’s disposal point.

6. Mechanical Services

Plumbing work involving mechanical heating, cooling, or ventilation systems in a building that is associated with that building’s heating, cooling, or ventilation. This covers any and all work on flues, pipes, boilers, air conditioners, associated roofing or venting, and so on.

7. Fire Protection

Plumbing work involving any part of a water service used for fire fighting, from the point of connection to the water supply to any fire fighting device or equipment that forms part of that service. Fire hydrants, hose reels, domestic fire sprinkler systems, and other similar items fall under this category.

8. Irrigation

Work involving irrigation systems, from the system’s water supply to the last valve or control to any pressurized zone.

Activities For Plumbing Network

1. Underground Plumbing Activities

-Underground piping

-Putting sleeves in concrete slabs

-Embedded pipes in concrete slabs

2. First Fix Plumbing Activities

-Cutting and chasing in the block wall

-Putting pipes in the block wall

3. Second Fix Plumbing Activities (Typical Floor In Tower)

-Horizontal drainage piping

-Horizontal water supply piping

-Vertical Water supply pipes (Riser)

-Vertical drainage pipes (Riser)

-Floor Drain (Trap)

-Water Heater Installation

-Shower Tray/ Bath Tub Installation

4. Second Fix Activities (Basement/Mechanical Floor/Roof)

-Sewage Lift Pump Installation and Piping

-Water Transfer Pump Installation and Piping

-Water booster pump Installation and Piping

-Installation Of Water Tank and connection

5. Final Fix Activities 

-Sanitary Ware Installation

-Installation of Water Meter

6. Testing and Pre-Commissioning 

-Pre-Commissioning Of Water Transfer and Booster pumps

– Pre-Commissioning Of Water heater

-Roof Water Tank Fillup

-Flushing and checking leaks in water supply pipes

-Flushing and checking leaks in drainage pipes

-Flow test on drainage riser

7. Commissiong & Handing Over

-Testing and Commissioning Of Water Transfer and Booster pumps

-Testing and Commissioning Of Water heater

-Testing and Commissioning Of bathtub and sanitary ware

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See Also

MEP Planning Manual

Six Sigma Project Plan Template

Develop project management plan process