We live in a townhouse that was newly built 3 years ago. A few weeks ago, we had a heavy rainfall and I noticed that the water in the backyard (we just have a patio, no lawn) did not go down the drain (storm drain??). Not only that, but after the sump pump turned off, I noticed that there was water actually coming up from the drain because I saw small bubbles coming out of the drain. It wasn't until the next day that all the water finally disappeared.
Thinking back in retrospect, during the end of the first winter, we had noticed that as the snow melted in the back patio, it took a long time before all of the water went down the drain. At the time, the builder told us that it was because there was frozen ice down there and that other units had the same problem. Come to think of it, we have had other rainfalls and the same thing has happened where the water doesn‚Äôt drain very fast and the bubbles appear after the sump pump stops.
What does this mean? Is it a construction issue? Is the sump pump clogged? If so, it would seem strange since the house is not that old. Any advice would be greatly appreciated!! Thanks!!
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