Our Atlanta, GA house has a swimming pool surrounded by cement. At the back, the cement abuts with a narrow strip of soil, maybe 4 feet wide by about 30 feet long, with a fence behind it. The soil strip has plants for ground cover on it. Over the years, either the cement has sunk or the earth has raised, or both, so that the earth strip is now several inches (say 2-4 inches) higher than the cement. Water puddles up at the junction of the cement and earth, and doesn't drain well. What are some options for improving drainage at the junctions? I'd prefer something quick and simple.
I would get a sod cutter and remove that strip. Does water flow from the edge of your swimming pool to collect at that margin? Definitely get that DAM down. If the soil is still to high beyond your fence line then a trench drain is in order. The top of this drain should be BELOW the soil in line with the slope away from the pool to accept the drainage from the concrete around your pool. We can help with construction of trench/strip drains. How long has this been going on? When was this pool constructed? There is the possibility that contractor is still liable for stuff like this. Where is it you live, who and when did this pool get constructed, what are your state's (?) warranty for construction (check buildings and code). If this is an earthen dam raised above the slope of drainage it needs to be taken down. Send a picture and we'll be able to tell you whether a swale or drainage pipe is in order. Not a big deal at all. But it is for a swimming pool!
If this strip is not lawn and is full of plants then think about a trench drain along this edge in front of that strip. The top of that perf pipe, drainage tile should not be above the slope you want to maintain. You'll need a trench dug, a few inches of crushed gravel, your pipe laid on top, covered with landscape fabric, backfilled with drain rock (rounded 1 1/2 inch cobble) covered with landscape fabric, more cobble laid on top, daylighted somewhere safe (check on being able to drain into city sewer/water overflow not always allowed) but you have to slope that pipe to take the water somewhere else...that would save your strip. Perhaps the swimming pool did sink but that is the contractor's fault for not compacting the subsoil and or disturbing the subsoil. Kind of a big big deal with swimming pool installation.