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  • The feed to this tap goes from our kitchen, through the ground floor slab to the outside, reusing a decommissioned copper / iron gas supply pipe. My bright idea.

    Sealed at both ends it goes from 2.5 bar to 2 over 48 hours then stabilises at 2 bar. Does that mean it’s leak free? Where is the 0.5 bar going?

  • Could it be the valve on the kitchen side? As you use the kitchen tap, the pressure drops on the other side of the valve and a tiny amount of water leaks back in to the open system?

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