: On 27 Aug 2003, Mark in Maine spake unto rec.woodworking:
: > Dear Gurus
: > I am a woodworker, and a photographer.
: > 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, 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?
: You can't have a "sealed" bucket - without a vent, very little water
: can go in or out. So, a riser tube or some other vent is needed.
: If the laundry sink were full, you could start a siphon when your
: sump pump cycled on and off. This would refill your bucket, which would
: start the sump pump, which would start the siphon, which would refill the
: bucket, which would start the sump pump, etc., etc.
: You might be better off plumbing the sump to the sink waste drain,
: rather than just dumping it into the open sink.
: Scott. not a plumber but I play one on rec.woodworking
A sump pump may not have the "balls" to pump 10' vertical. You may need to put
in an ejector pump.