re: Yard drainage PVC pipe

quote:

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Eta....something like this, expect the bottom hole is not that big and the side hole does not exist. It's just has side walls 8" tall

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That sir is what's called a trench drain. The outlet is probably over a gravel bed forming a French drain to help rain water run away from the house. The gravel is probably plugged with silt/mud and not draining correctly.

The trench drain box should have been tied into a pipe that either ran into the city/county/parish storm system or into your neighborhood ditch.

You may have to dig it all up and pipe it correctly.