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Outlet from kitchen sink and dish washer

  • 10-07-2013 5:51pm
    #1
    corktina
    Closed Accounts Posts: 17,733 ✭✭✭✭


    (Done a search can't see a relevant thread)

    I suspect that the drain from my kitchen sink and dish washer must run to a soak-away rather than into the sewerage system. Is this acceptable? There is no lavatory connected , they seem correctly installed .


Comments

  • #2
    gman2k
    Registered Users, Registered Users 2 Posts: 4,076 ✭✭✭gman2k


    It's foul water, and must run to a treatment system (i.e. septic tank if that's what you have).
    Anyone who tells you different is unaware of the regulations.
    Good practice is to run them through a grease trap first, before entering the foul system.


  • #3
    corktina
    Closed Accounts Posts: 17,733 ✭✭✭✭corktina


    actually looking at what info I can get on the Net, Foul water is water containing human waste and there is a distinction between it and waste water.

    If you think of it logically, foul water runs into a septic tank, all the solids fall to the bottom and excess water spills over into the soakaway, where it seeps into the ground, excactly as waste water without human waste would soak into the ground if there was no septic tank and it went direct to a soakaway.

    If you can quote Building Regulations to the contrary, it would be useful.


  • #4
    gman2k
    Registered Users, Registered Users 2 Posts: 4,076 ✭✭✭gman2k


    Kitchen Sink, dishwasher, shower, handbasin etc are all wastewater.
    Rainwater only goes to rainwater.

    EPA Link
    Pg 9 Definitions:
    Wastewater: The discharge from sanitary appliances, e.g. toilets, bathroom fittings, kitchen sinks,
    washing machines, dishwashers, showers, etc
    Pg 10
    Under no circumstances should rainwater, surface water or run-off from paved areas be discharged to on-site single-house treatment systems. However, grey waters (washing machine, baths, showers, etc.) must pass to the treatment system.


  • #5
    Delta Kilo
    Registered Users, Registered Users 2 Posts: 1,212 ✭✭✭Delta Kilo


    It is/was quite common for homebuilders in the country ((farmers building their own houses type of job) to run sink water to a soakage pit rather than the septic tank as it slowed down the rate the septic tank would fill. This is only the case where septic tanks have to be emptied "manually". In a proper working septic tank system, this is largely irrelevant and builders would always run the sink water etc to the septic tank.


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