Originally Posted By: Susan
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The "lift station" is also refered to sometimes as an ejector pump/pit. Similar to a sump except there is a "grinder" that takes care of solids and pumps, "lifts" them up to the sewer line.
Around my area, particularly in my jurisdiction, the drain tile is around the exterior of the footing. Just for sake of information, the drain tile usually is placed so it can do it's job. Usually a few inches from the footing as that is it's purpose. The pitch of the draintile is important as well and this is usually achieved with stone (size of the stone varies by area). There is stone below the tile and also above and then sometimes rosin paper (what I usually see is dark pink in color). The paper helps keep smaller spoils from getting into the perforations. Other times, the tile is socked or sleeved with a nylon type of cover. This nylon cover helps keep dirt from clogging up the draintile.
Some areas require both an interior and exterior perimeter of draintile. Depends on local requirements and conditions of the soil etc. Sometimes the draintile is also passed through the footing forms before the footing is poured. If you haven't already, try to check out a new construction where the footing is formed up. The draintile can be hard to see after the walls are poured and even before the backfill. (You have to dig through the gravel to see it! If you can see it, that's a clue that it could be a potential problem for clogging the tile in the future...not a good situation!!)
Anyway, you probably knew most of this but thought I'd share some of what I know.....