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Combi system - low water pressure

  • 22-08-2014 4:05pm
    #1
    sarkozy
    Registered Users, Registered Users 2 Posts: 1,476 ✭✭✭


    We live in a 2 storey terraced house in Dublin. We have a combi boiler on the second floor and a cold water storage tank in the attic. The water mains comes in through the front of the house and up to the tank. We need to boost our water pressure for taps and shower upstairs. A plumber mentioned installation of a submersible pump because it's very quiet, but he wasn't clear where this would go. The possibilities are that it might go in the attic tank to feed the bathroom and hot water kitchen tap, or it was also mentioned putting a pump under the stairs where the mains is. Can someone clarify what would ordinarily be done in this situation?


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  • #2
    antiskeptic
    Registered Users, Registered Users 2 Posts: 9,555 ✭✭✭antiskeptic


    sarkozy wrote: »
    We live in a 2 storey terraced house in Dublin. We have a combi boiler on the second floor and a cold water storage tank in the attic. The water mains comes in through the front of the house and up to the tank. We need to boost our water pressure for taps and shower upstairs. A plumber mentioned installation of a submersible pump because it's very quiet, but he wasn't clear where this would go. The possibilities are that it might go in the attic tank to feed the bathroom and hot water kitchen tap, or it was also mentioned putting a pump under the stairs where the mains is. Can someone clarify what would ordinarily be done in this situation?

    A combi boiler is a boiler which heats water on demand so you'll have no hot water storage tank? Right?

    Is the combi boiler supplied from the cold water storage tank or it is supplied by the mains? If the former, then the simplest way to boost hot water pressure in the whole house is to change the supply to the combi boiler from cold storage tank to mains (assuming the boiler is suitable for operating at mains pressure (as my combi boiler is)).

    You'll then have mains pressure hot water at all hot water taps in the house (as I do)


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