I recently puchased a 30yr old home in Aug, since looking at the home since June, the center(approx 8ft diam) of the sloping back yard has always been swampy with 1ft diameter wet sinkhole near the top of the wet spot. the seller told me this problem was new this year (the wettest year in Pittsburgh history)and from the neighbors leaking above ground pool.(I bought that explaination and waited for him to fix the pool) 6months later the yard is still swampy and the pool never did have a leak. The township inspector came to the house and with a visual inspection thought it was an underground spring reaching the surface due to the exceptionally wet summer/fall. Is there any way to drain the water so my yard will dry up enough for the kids to play on it without sinking into the earth? thanks
Bob

Spring

French Drain