Copper-to-PEX conversion plan

EQUIPMENT

• Basic inspection tools
• Service information for the exact model
• Notebook or photo record

STEPS

• Map the lines, shutoffs, pipe size, access and hot/cold service conditions. Check applicable local requirements and any grounding/bonding implications before replacing copper.
• Choose compatible listed fittings and the correct PEX connection system; do not mix crimp, expansion and push-fit assumptions.
• Shut off and relieve pressure, cut square, deburr copper and mark the exact fitting’s insertion depth. Assemble according to its manufacturer’s instructions.
• Support tubing, protect it from abrasion/UV/heat and perform the required leak/pressure test before closing the wall.

TROUBLESHOOTING

• Insertion depths differ by fitting generation. A fitting that feels attached may not be fully seated. Do not improvise compressed-air testing unless the system manufacturer and local requirements allow it.

SAFETY / LIMITS

• Use qualified judgment and current manufacturer or code guidance for safety-critical work.

THINGS TO WATCH FOR

Insertion depths differ by fitting generation. A fitting that feels attached may not be fully seated. Do not improvise compressed-air testing unless the system manufacturer and local requirements allow it.

REFERENCES

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