Darkroom Plumbing, below grade

Discussion in 'Darkroom Developing and Printing' started by Mark in Maine, Aug 27, 2003.

  1. I am being evicted from my current darkroom, and am building a new
    darkroom in our basement to replace my current space.

    All is going well, but I have a question regarding plumbing which I
    was wondering if anybody could help me with:

    We are on a septic system, (I do not dispose of fix down the drain,
    that goes into buckets from which it is taken in for silver recovery),
    and the basement where the new darkroom will be is below the level of
    the inlet to the tank. I would like to take the drain from my sink,
    and have it go into a sealed bucket with a sump pump in it, and pump
    the water (there will be no solids), up about 10 ft to a laundry sink
    that is in my wifes studio above where the darkroom will be. The
    water will then flow down the drain of the laundry sink and into the
    septic tank -

    Does anybody see any problems with this? Is there a better way?


    Mark in Maine, Aug 27, 2003
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  2. Get a check valve for the system. You will never empty the darkroom drain
    below the point that it exits, so anything above that level needs to be
    checked so that it cannot return though the pump into the sink. It is not
    a problem, my darkroom is below grade and I have been pumping water out of
    it for nearly 30 years now. A washing machine drain tube (1/2" PVC) was
    located more or less above the darkroom sink. I cut it and added a T for
    my darkroom drain.
    WB3FUP \(Mike Hall\), Aug 27, 2003
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  3. Mark in Maine

    Mike King Guest

    Building codes vary so I would consult with a plumber-note-NOT repeat NOT
    the City building inspector. Plenty of time for that after your
    consultation when you file for a building permit.

    Not much different in application that the sort of setup required for a
    washing machine in similar circumstances though the washer would use a lot
    more water.
    Mike King, Aug 27, 2003
  4. Mark in Maine

    Tom Thackrey Guest

    Don't seal the bucket, otherwise when the pump runs you will have a suction
    on your darkroom sink drains. I used a 30 gallon plastic bucket and a 1/4 hp
    sump pump. My rise is about 6' and it works well. The only problem I have is
    a little algae once in a while which I cure with a couple of grains of
    bromine (from the hot tub).

    One other thing, get a voltage regulator for your enlarger or put the pump
    on an isolated circuit. When the pump starts there's a significant voltage
    Tom Thackrey, Aug 27, 2003
  5. I have the exact same problem. I found a below grade "laundry sink pump" at
    Home Depot which is a sealed bucket with pump and float that is simply
    attached to the sink drain and pumps up to (in my case) a connection into
    the septic tank line. Of course it requires a check valve and a vent for
    the bucket. Wok well, not very expensive.
    Pieter Litchfield, Aug 29, 2003
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