Reduced width for chambers

Home Forums Alberta Onsite Wastewater Management Association Reduced width for chambers

This topic contains 1 reply, has 2 voices, and was last updated by  Kelly Weyerman (WCOWMA Admin) 4 years, 9 months ago.

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  • #1637

    fbboersema
    Participant

    I’m wondering why we allow a reduction in the trench bottom if chambers are used instead of pipe and rock.What is it about chambers that would treat the effluent even as good as the attached film on the rocks?

    Especially when used with secondary effluent. If secondary is being used because of difficult soil conditions, one would think we need all the surface area we can get. We still have the same amount of effluent to dispose of even if we have treated it better.

    #1662

    The theory behind reductions in trench bottom if chambers are used is that chambers allow better distribution of effluent due to the fact that there is no gravel ‘masking’ or covering the soil interface. Basically, the argument is that effluent distributed in chamber systems is distributed more evenly because the rocks in a rock and pipe system, mask the ground where the rocks come into contact with the infiltrative surface, thus reducing the infiltration area.

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