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Tank plus booster pump supply versus mains

  • 28-08-2017 9:35pm
    #1
    Escapees
    Registered Users, Registered Users 2 Posts: 663 ✭✭✭


    The water supply to the bathrooms and the hot water tank in my apartment is from a big tank along with a booster pump... but I just discovered a valve option to switch this to the mains instead. I think the option is there in case there's a power cut and you still want to use toilets etc.

    I tried it out earlier and everything works like normal. But if the mains pressure is more than adequate, then why did the builder bother with the whole tank and booster pump setup in the first place?! I'm wondering if the pressure was low back when the apartment was built maybe? But whatever the reason, if I stop using the tank and booster pump supply, I presume the pump will seize up probably over time but also that the water in the tank will go manky?

    Just seems simpler and less to go wrong if I were to leave the mains supply switched permanently. And if there was no water for some reason, I could in theory switch the valve back to the tank and pump supply.


Comments

  • #2
    antoinolachtnai
    Registered Users, Registered Users 2 Posts: 9,815 ✭✭✭antoinolachtnai


    If you are in Dublin, it is a legal requirement that there is a tank. You cannot run your whole house off the mains directly. The reason for this is to avoid a heavy pull on the public supply during the peak times resulting in low pressure elsewhere on the network.


  • #3
    dathi
    Registered Users, Registered Users 2 Posts: 1,422 ✭✭✭dathi


    antoinolachtnai wrote: »
    If you are in Dublin, it is a legal requirement that there is a tank. You cannot run your whole house off the mains directly. The reason for this is to avoid a heavy pull on the public supply during the peak times resulting in low pressure elsewhere on the network.

    not just in dublin it is required in all homes under the building regulations this is taken from the TGDs 1.3 The cold water supply to the kitchen sink should
    be taken directly from the service pipe supplying
    water to the dwelling; the cold water supply to the
    bath or shower and the washbasin and to other
    appliances in the dwelling should be from a cold
    water storage cistern. The bath, shower, washbasin,
    and sink should also have a piped supply of hot
    water, which may be from a central source or from a
    unit water heater.


  • #4
    Escapees
    Registered Users, Registered Users 2 Posts: 663 ✭✭✭Escapees


    dathi wrote: »
    not just in dublin it is required in all homes under the building regulations this is taken from the TGDs 1.3 The cold water supply to the kitchen sink should
    be taken directly from the service pipe supplying
    water to the dwelling; the cold water supply to the
    bath or shower and the washbasin and to other
    appliances in the dwelling should be from a cold
    water storage cistern. The bath, shower, washbasin,
    and sink should also have a piped supply of hot
    water, which may be from a central source or from a
    unit water heater.

    Ah, of course - that makes 100% sense! Should have clicked this myself!! Thanks guys...


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