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TABLE OF CONTENTS
1.0. PURPOSE
2.0. SCOPE OF WORKS
3.0. SUBMITTALS
4.0. MATERIALS
5.0. WORKMANSHIP
6.0. STANDARDS
7.0. PROJECT MANAGEMENT
8.0. PIPES IN WALL CHASES
9.0. PIPES ON THE SUNKEN FLOOR OR SUSPENDED IN CEILING (DRAINAGE)
10.0. SANITARY FIXTURES & CP FITTINGS
11.0. DISINFECTION
12.0. QUALITY CONTROL
13.0. SAFETY
14.0. ATTACHMENTS:
1.0. PURPOSE
The Method statement highlights the detailed procedure of installation of the Plumbing & Sanitary system allied with installation of internal and external pipes to ensure compliance with project specification.
2.0. SCOPE OF WORKS
This procedure establishes the instructions for the preparation and control of Inspection and Test Plan (ITP) for plumbing & Sanitary work activities and notification to [Write Client Company Name Here] management for their selected inspection point in a timely manner. The method statements applied to the installation of water supply and drainage for [Write Project Name Here].
3.0. SUBMITTALS
A. Product Data:
Submit manufacture's product data, including test reports for each type of CPVC accessories and other manufactured products, as well as certifications of compliance with the specified requirements for each type.
B. CPVC samples
Submit CPVC samples (Material) showing color and texture for project engineer’s selection and proper approval.
4.0. MATERIALS
- A 'Material Proposals' schedule shall be submitted to the [Write Client Company Name Here] giving details of materials, manufacturer's name, technical details etc. Schedule" will be submitted.
- Total care shall be taken to ensure that the materials that finally arrive at site and meet all requirements of [Write Project Name Here].
5.0. WORKMANSHIP
Adequate workforce shall be always deployed to meet the approved Construction schedule. The workforce shall be suitably augmented as demanded by actual site conditions.
6.0. STANDARDS
All work shall be performed in accordance with this method statement and the following standard, codes, and references:
- American Society for Testing and Materials (ASTM) D1784 or ASTM D 2729 standard specification for unpasticized Polyvinyl Chloride pipe,
- American Society for Testing and Materials (ASTM) F 439 standard specification for CPVC pipe and fitting,
- American Society for Testing and Materials (ASTM) D 1784/ASME B16.5 standard specification for CPVC flange.
- No permanent work will commence until such approval has been given.
7.0. PROJECT MANAGEMENT
- Site staff will be organized as per an ‘Organization Chart’ issued at the Beginning of the Project. Any revisions to the site organization will be duly recorded and intimated to the Project Managers.
- Weekly site meetings shall be attended by a senior member of the contractor’s team. There should be periodic visits by the Executive Management.
- Any deviation from approved working drawings made by site instructions by [Write Contractor Name Here] shall be indicated in the ‘As Installed’ drawings to be issued at the end of the project. These instructions will have to be formally confirmed before the required changes or deviations are implemented.
- The site engineers shall co-ordinate with other Departments handling other services such as electrical, HVAC, Interiors etc. as and when required.
- A strict quality control program should be implemented, and all efforts must be made to achieve and maintain a high degree of workmanship.
8.0. PIPES IN WALL CHASES
a) Make sure that walls are at least rough-plastered and finish levels are marked by the civil contractor. If proper final levels are not marked, the
b) Mark pipelines on walls as shown on the working drawing.
c) Chase the walls to required depth using a chasing machine.
d) Assemble piping starting from branch left in shaft and install in the wall chase with clamps. Use prefabricated assemblies wherever possible.
e) Locate fixture outlets as per the working drawing and tile- module drawings. Title modules shall be properly marked on walls by the assigned/approved contractor.
f) Plug all openings and test the pipe work for leaks under specified pressure and for required duration. Tests should be witnessed and approved by authorized personnel.
g) Insulate hot water pipes with the specified material.
h) Close the wall chases with cement mortar. If site conditions require a depth of more than 40mm to be chased, it is advisable to use a suitable mesh while plastering and 'making good'.
9.0. PIPES ON THE SUNKEN FLOOR OR SUSPENDED IN CEILING (DRAINAGE)
a) Make sure that base water- proofing of toilet floors are properly is completed.
b) Locate and mark positions of soil and waste outlets. Make core drills where necessary.
c) Assemble pipe headers and connect them to branches left in the shaft for this purpose. Pre- fabricate wherever possible.
d) Make sure that pipes are in proper slope and are supported adequately. Always make sure that the spacing of support is as per specifications. Also make sure that floor traps are properly installed in level so that the water seal is not diminished.
e) Test the pipes and attend to leaks, if any.
f) Supervise the filling of sunken floors by civil team so that the alignment and slope of drainage pipes are not disturbed.
g) Keep all open ends plugged in to prevent ingress in construction debris.
10.0. SANITARY FIXTURES & CP FITTINGS
a) All installation work shall be as shown in the drawings and shall conform to the applicable ASTM standards.
b) All fixtures shall be fastened and/or supported in accordance with the given requirements.
c) Flush the installed pipe work (water supply and drainage) to remove debris or blockages, if any.
d) Check CP fittings for leaks and firmness. Refit them if necessary. Ensure that proper tools are used. Any other kind of damage on the chrome plated fixtures should be strictly avoided.
11.0. DISINFECTION
a) The water distribution system should be thoroughly disinfected before being put to use. The below highlighted examplarly procedures will make sure the satisfactory results: Flush and clean water tank(s) and distribution pipe work with potable water to remove dirt and any foreign matter properly.
b) Fill the tank(s) with water mixed with chlorine solution at the rate of 50 parts per million. Retain chlorinated water in the system allowing the chlorine to spread throughout pipe work.
c) Open the farthest draw- off points or drain plug/valve to draw water.
d) Repeat the procedure till odor of chlorine is felt at all locations when Checked at random.
e) Drain out chlorinated water and fill the system with potable water.
12.0. QUALITY CONTROL
a) QA/QC Engineer will be in close contact with the representative of [Write Client Name Here] during the entire operation.
b) QA/QC Engineer, in association with site Engineer will be responsible for the implementation of the inspection stages as this is required by ITP.
c) QA/QC Engineer and site Engineer will be in close cooperation, coordination with [Write Client Name Here] during the process/progress of the work to implement the inspection requirements.
d) QA/QC Engineer shall be responsible for site inspection/test activities, co-ordination with concerned authorities of [Write Client Name Here].
e) Maintain records of quality control checks and markup arrangement drawings to record the location.
f) Keep fully up to date the construction records.
g) All the above work will be continuously monitored as the work proceeds. Records of these inspections and quality control inspection reports shall be maintained for final documentation.
13.0. SAFETY
a) A safety plan shall also be submitted prior to commencement of work.
b) Due care shall be taken as regards all the safety aspects of the work.
c) Relevant PPE (Personal Protective Equipment) shall be used by all people working on the installation.
d) All work is to be carried out in accordance with the site safety plan.
14.0. ATTACHMENTS:
Risk assessments
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