I have a pool area which was filled with dirt. Side wall are intact but there were three large holes done at the bottom. During heavy rain season i see there is a water logging in the pool area as water have no way to escape (in the side).

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This was discussed in detail in an earlier post Water logging in demolished pool area

Now i want to create a drainage solution to it. I have two options.

Approach #1) create a contour in the middle of pool something like below and put a perforated PVC pipe along the drainage canal.

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Approach #2) Do grading and have 3 ground drains to collect water and use the solid PVC pipe.

Approach #3) Use both ground drain and perforated pipe. i.e hybrid approach of #1 and #2

Which of the above are preferred in this situation? I am having compacted soil in the pool area so i believe water is not getting down to the bottom area of the pool for drainage. Pool area is roughly 30'X 15'

  • 1
    I would recommend diverting the water away from the sunken pool using turf/ground drains and solid pipe, assuming you have the topography to allow you to bury the pipe and still provide adequate slope, and then discharge it in a lower area. I have heard (anecdotal) about buried pools pushing upwards due to displacement by water. Oct 6, 2016 at 2:03
  • Hi Jimmy, Thanks for the reply.Does that mean option #2 is better? My only concern is in option #2 i can only have 2-3 ground drains and if water seeps into subsurface it will saturate the ground. Isn't perforated PVC pipe good for draining the subsurface water?
    – David
    Oct 6, 2016 at 5:15

1 Answer 1


Assuming you can pipe the water somewhere downhill, you can use a french drain if you don't want to have a exposed trench or visible drainage grates in the middle of your yard.

A french drain is a low maintenance underground trench filled with rocks and gravel around a perforated pipe, and it is usually used to pipe the water away to a lower spot or some kind of sump pump.

They also make prefabricated french drains which is easier to install, its basically a "pipe" that you can bury and serves the same purpose without needing rocks and gravel.

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