- Confirm you hold the correct water industry qualifications before starting.
- Follow the water company's approved connection method and specification.
- Locate the existing main using service plans and a CAT and Genny.
- Hand dig to expose the main within 500mm of its indicated position.
- Disinfect all pipe and fittings before installation to prevent contamination.
- Pressure test the new service pipe before making the final connection.
- Chlorinate and flush the service pipe before putting it into supply.
- Support the excavation around the main to prevent collapse during tapping.
- Have a plan to manage water release if the connection fails.
- Record all test results and complete the installation documentation.
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- DON'T tap a live main without the correct competence and qualifications.
- DON'T use unapproved fittings or pipe materials for service connections.
- DON'T handle pipe with dirty hands or place them on bare ground.
- DON'T skip pressure testing before the live connection to the main.
- DON'T excavate around the main using a mechanical excavator.
- DON'T leave exposed pipe ends unprotected — cap to prevent contamination.
- DON'T work on live mains without a plan for uncontrolled water release.
- DON'T backfill without completing as-built records.
- DON'T bypass chlorination and flushing before commissioning.
- DON'T connect without the water company's approval and permit.
See also: Water Main Installation Safety | Safe Digging Practices (HSG47)
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