mm,

In your situation, each house will have it's own drainage system. All
the pipe will be perforated.

Generally. drainage systems will consist of

1)Nothing or

2)Gravel or

3)Gravel with drain tile leading to a sewer, street curb, daylight
drain or driwell. In this instance, a continous loop of perforated pipe
(draintile) would be placed around perimeter of basement connected with
a tee fitting with a pipe leading to the sewer, curb etc.,. no pump
needed.

4) Gravel with drain tile leading to sump pit. Again, continous loop of
pipe, both ends terminating in sump pit. From there, the water can
either be pumped out or another pipe can be fitted to sump pit leading
to sewer, street curb, etc.

As the systems ascend as listed, they obviously ascend in price. The
second two do the same thing, it just depends on the grading of the lot
and the age of the houses. Nowadays, it;s cheaper just to put in a full,
pumped system than to do the extra digging to extend to daylight drains


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