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Pressure for bathroom water in dormer

  • 09-04-2012 9:19am
    #1
    Eoghan Barra
    Closed Accounts Posts: 286 ✭✭


    Hi all,

    We're building a 1.5 storey dormer, and there will be a small bathroom upstairs - sink, shower, bidet, wc. A problem has cropped up that I didn't foresee at all, in that there is no room in the small attic space under the ridge for the water tank. Someone asked me the other day where the pressure for the sink, bidet and wc will come from and I had to admit it hadn't occurred to me (shower will probably be electric instant with built-in pump).

    The water supply will be from a private well which will be on higher ground (no idea how deep they'll have to go to find water), and the water tank will probably be hidden away somewhere at upstairs floor level.

    When I find a plumber he may well know the answer, but in the meantime, is a pump the only solution here or have others encountered this problem and resolved it in another way? :confused:


Comments

  • #2
    suite16
    Registered Users, Registered Users 2 Posts: 31 ✭suite16


    I'm no expert, but based on my own house extension experience, when you have outlets (toilets, taps etc) in a higher position than your water storage (immersion cylinder/storage tank), then you need to pressurise your whole system with a pump. My extension isn't done yet, but the plan is to have 1.5 bar pressure to all taps, generated by a pump which will be in the garage. This also requires changing all of my taps to handle pressure.


  • #3
    Eoghan Barra
    Closed Accounts Posts: 286 ✭✭Eoghan Barra


    Thanks for that, suite16, I suspected as much.


  • #4
    335i
    Registered Users, Registered Users 2 Posts: 11 ✭335i


    Hi,

    I had the same problem when building. I decided to go with a pump which powers the whole system. I must say I could never go back, excellent pressure in all bathrooms, toilets fill quicker, all the showers are like power showers.

    I would recommend if you are going with the pumped option is to fit 2 water Storage tanks in the attic space as the pump can empty a single tank fairly quickly.

    If I was building again I would put all the storage tanks and pump in the garage. If your building a garage it's an option for you. Benefits are if you ever have a fault in your tanks or pump your house is safe :-)

    The Only other advice I can think of is for you to install a large hot water storage tank also. I'm running geothermal so have hot water 24/7 and a large hot tank. Pump would empty a standard tank quickly.

    Hope this helps!

    Kevin.


  • #5
    Eoghan Barra
    Closed Accounts Posts: 286 ✭✭Eoghan Barra


    Some very useful advice there 335i, will keep all of those points in mind.

    Thanks.


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