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  1. G

    Circulaing pump is pulling air via the vernt pipe

    Yes this is HW sid o the tank Jam Jar idea is great - will give it a go and report - along with a photo. The tank/pipework have never been chemically cleaned - the tank is about 10 yrs old. We are not in a hard water area, and we have a household water softener feeding the cold tank...
  2. G

    Circulaing pump is pulling air via the vernt pipe

    Can anyone advise. Just fitted a circulating pump to HW tank. Connects the vent pipe (approx 60 cm from tank top) to the drain connection. When the pump starts up it is fine. However, it collects air and then stop pumping. I have avoided puttting an essex value in as the top...
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