discharge safety valve

  1. J

    How to remove and clean Discharge Safety Valve on glowworm 24ci boiler

    Steady drip from knurled union nut on the discharge safety valve pipe, leading to the outside. Boiler loses pressure over a few days. Had a new external expansion vessel plumbed in which has cured the previous big problem, but the steady drip remains - a niggle needing a cure. Does the whole...
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